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Always opposite of the right angle of the right triangle Hypotenuse

Will always makeup part of the angle that is being discussed and not be the hypotenuse Adjacent Side

Will never form part of the angle being discussed Opposite side

Opposite/Hypotenuse Sine

Adjacent/Hypotenuse Cosine

Opposite/Adjacent Tangent

A triangle with a right angle Right triangle

A special right triangle with two congruent angle 45-45-90 Triangle

Two sides with with equal lengths Isosceles Triangle

Special right triangle that uses the ratio 1:Radical of 3:2 30-60-90 Triangle

a^2+b^2=c^2 Pythagorean Therom

Angle that is always 90 degrees Right Angle

A plane figure with three straight sides and three angles Triangle

Branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant function of any angles Trigonometry

Identical in form, size and angles Congruent

Inverse of sin Sin^-1

Inverse of Cosine Cos^-1

Inverse of Tangent Tan^-1

The angle sum of a triangle 180 Degrees

Is used to show which lines are parallel \

If all sides are the same on both of the triangle then they are congruent SSS Postulate

If two sides and the angle between them are the same then they are congruent SAS Postulate

Another word for height Altitude

In a triangle it is the line segment drawn from a vertex to the midpoint Median

If two angles are the same for two triangle then they are the same AA Postulate

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opposite side over adjacent side tangent

opposite side over hypotenuse sine

angle less than 90 degrees acute

angle greater than 90 degrees obtuse

a triangle with two equal sides isosceles

a triangle with a 90 degree angle right

a triangle with three equal sides equilateral

a triangle with no equal sides scalene

the study of the relationship between the angles and the sides of a triangle trigonometry

the theorem that relates the three sides of a triangle pythagorean

the side opposite to the right angle hypotenuse

Formula that is for the distance around the shape perimeter

the amount of space within a shape area

In the area formula of a triangle, what does b stand for? base

Measure of the vertical distance height

same size same shape congruent

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is the study of the relationship of the sides and angles of a triangle trigonometry

contains a right angle, which measures 90 degrees and two acute angles each less than 90 degrees right triangle

the side opposite the right angle is the hypotenuse hypotenuse

the other two sides legs

which says that the square of the length of the hypotenuse equals the sum of the squares of the lengths of the legs Pythagorean Theorem

special right triangle has acute angles measuring 30 and 60 degrees. 30-60-90 triangle

trig ratios, opposite over hypotenuse sine

trig ratio, adjacent over hypotenuse cosine

is adjacent next to the theta angle adjacent leg

across from the theta angle opposite leg

trig ratio, opposite over adjacent tangent

isosceles right triangles sometimes referred as, acute angles are equal 45-45-90 triangle

angle between a horizontal line and the line of sight to an object above the horizontal line angle of elevation

angle which the plane descends angle of depression

is a set of three integers a, b, c which form the sides of a right angled triangle Pythagorean triple

perform the opposite operations that the sine, cosine, tangent, secant, cosecant and cotangent perform inverse trig function

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Angle Of Depression

SOH CAH TOA

Trigonometric Ratio

Inverse

Trigonometry

Tangent

Sine

Triangle

Right Triangle

Reference Angle

Opposite

Hypotenuse

Degree

Cosine

Bearings

Compass

Angle Of Elevation

Adjacent

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Measurement of triangles Trigonometry

An angle less than 90 degrees Acute

An angle greater than 90 degrees and less than 180 degrees Obtuse

A trigonometric function that equals y coordinate Sine

A trigonometric function that equals x coordinate Cosine

A trigonometric function that equals y/x coordinate Tangent

The side opposite of the 90 degree angle Hypotenuse

The side opposite of the theta Opposite side

The side closest to the theta Adjacent side

Y=sin^-1 x Sine inverse

Y=cos^-1 x Cosine inverse

Y=tanX Tangent inverse

contains a right angle, which measures 90 degrees and two acute angles each less than 90 degrees Right triangle

the other two sides Legs

which says that the square of the length of the hypotenuse equals the sum of the squares of the lengths of the legs Pythagorean theorem

any triangle with two sides of the same length Isosceles triangle

isosceles with a right angle Right isosceles triangle

special right triangle has acute angles measuring 30 and 60 degrees 30,60,90

isosceles right triangles sometimes referred as, acute angles are equal 45,45,90

ratios of any two sides of a right triangle trigonometric ratios

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A theorem in geometry : the square root of the length of the hypotenuse of a right triangle equals the sum of the squares of the lengths of the other two sides. Pythagorean Theorem

A trigonometric function that is equal to the ratio of the side opposite to the side adjacent to a given angle. Tangent

A right triangle with some regular features that makes calculating triangles easier. Special right triangles

The trigonometric function that's equal to the ratios of the side opposite of a given angle to the hypotenuse. Sine

Triangles with equal corresponding angles and proportional sides. Similar Triangles

A triangle with a right angle. Right triangle

An angle with 90 degrees. Right angle

An angle that measures less than 90 degrees but more than 0 degrees. Acute angle

Two angles that have a common vertex and common sides. Adjacent Legs

A trigonometric function that is equal to the ratio of the side adjacent to an acute angle to the hypotenuse. Cosine

The longest side of a right triangle. Hypotenuse

Ina right triangle, one angle is 90 degrees and the side across from the angle is called the hypotenuse. The two sides which form the 90 degree angle are called legs of the right triangle. The legs are defined as either "opposite" or "adjacent" to the angle A. Opposite Legs

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Two equal sides, and two equal angles Isoceles

Three equal sides, and angles Equilateral

No equal sides or angles Scalene

Angles are less than 90 degrees Acute Triangle

Has a right angle Right Triangle

Angle grater than 90 degrees Obtuse Triangle

RIght angle, and 2 equal sides RIght Isoceles

Right angle, no equal sides Right Scalene

Right angle, all equal sides Right Equilateral

Angle less than 90, no equal sides Acute Scalene

Angle less than 90, all equal sides Acute Equilateral

Angle less than 90, 2 equal sides Acute Isoceles

Angle more than 90, No eequal sides Obtuse Scalene

Angle greater than 90, 2 equal sides Obtuse Isoceles

Angle grater than 90, All Equal sides Obtuse Equilateral

a2+b2=c2 Pythagoream Theorem

b x h x 1/2 Area of Triangle

4 triangle faces, 1 square base Pyramid

Opposite over Adjacent Tangent

Opposite over Hypotenuse Sine

Adjacent over Hypotenuse Cosine

Three sides equal three sides sss

2 sides equal two sides, and angles are equal sas

Side of the triangle that is not Hypotenuse Adjacent

Line acroos the Right Angle Opposite

Longest Line in Triangle Hypotenuse

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a straight line from the center to the circumference of a circle radius

a unit of measurement of angles degree

the longest side of a right triangle, opposite the right angle hypotenuse

statement believed to be true based on observations conjecture

all three sides are equal in a triangle equilateral

triangle that has two sides of equal length isosceles

square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. Pythagorean theorem

relative sizes of two or more values ratio

figure with three straight sides and three angles triangle

the trigonometric function that is equal to the ratio of the side opposite a given angle (in a right triangle) to the hypotenuse. sine

equal to the ratio of the side adjacent to an acute angle (in a right-angled triangle) to the hypotenuse. cosine

an angle is the length of the opposite side divided by the length of the adjacent side. tangent

line forming the boundary of a closed geometric shape perimeter

when two anles have a common side and a common vertex (corner point) and don't overlap. adjacent

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Pythagorean triple

Theta

Opposite

Adjacent

Tangent

45-45-90 triangles

Inverse trig function

Pythagorean theorem

Angel of elevation

Cosine

30-60-90 triangles

Hypotenuse

Degree

Angel of Depression

Sine

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The side opposite the right angle of a right triangle Hypotenuse

A set of 3 positive integers that satisfy the equation c^2=a^2 + b^2 Pythagorean Triple

The positive number x that satisfies a/x = x/b Geometric mean

A ratio of the lengths of two sides in a right triangle Trigonometric ratio

Trig ratio that involves the lengths of the legs of a right triangle Tangent

Angle that an upward line of sight makes with a horizontal line Angle of elevation

Trig ratios that involve the lengths of a leg and the hypotenuse of a right triangle Sine and Cosine

Angle that a downward line of sight makes with a horizontal line Angle of depression

If tan A = x, then tan^-1 x = m<A Inverse Tangent

If sin A =y then sin^-1 y = m<A Inverse Sine

If cos A = z the cos^-1 z = m<A Inverse Cosine

Used to solve triangles with AAS or ASA Law of Sines

Used to solve triangle with SAS or SSS Law of Cosines

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For any positive numbers, numbers multiplied such that a/x = x/b Geometric Mean

The angle btween the line of sight and the horizontal when an observer looks upward Angle of Elevation

A group of 3 whole numbers that satisfies the equation a^2 + b^2 = c^2, where c is the greatest. Pythagorean Triple

For any acute angle of a right triangle, the ratio of the measure of the leg adjacent to the acute angle to the measure of the hypotenuse. Cosine

The angle between the line of sight and the horizontal when an observer looks downward. Angle of Depression

The study of properties of triangles and trig. functions and their applications. Trigonometry

For an acute angle of a right triangle the ratio of the meaasure of the leg opposite the acute angle to the measure of the leg adjacent to the acute angle Tangent

Finding the measures of all the angles and sides of a triangle. Solving a Triangle

A ratio of the lengths of sides of a right triangle. Trigonometric Ratio

For any acute angle of a right triangle , the ratio of the measure of the leg opposite the acute angle to the measure of the hypotenuse Sine