Point at which two line segments intersect (forming an angle)
Vertex
A triangle with all three sides with different lengths
Scalene
A triangle with two equal length sides (and two equal internal angles)
Isosceles
A triangle with all three sides of equal length
Equilateral
A straight line from the center to the circumference of a circle or sphere
Radius
Part of the circumference of a circle or curve
Arc
A line segment whose endpoints both lie on the circle
Chord
Distance around a circle
Circumference
An angle greater than 90 degrees but less than 180 degrees
Obtuse
A 90 degree angle. (Just name the angle)
Right
A quadrilateral having both pairs of opposite sides parallel to each other
Parallelogram
A solid shape with a polygon as a base and triangular faces that come to a point
Pyramid
A solid shape that is perfectly round like a ball. No faces, edges, or vertices.
Sphere
Two angles whose measures add up to 180 degrees
Supplementary
Two angles whose measures add up to 90 degrees
Complementary
A transformation in which a figure grows larger
Dilation
A transformation in which a figure is moved to another location without any change in size or orientation
Translation
3.14
Pi