A quadrilateral with 4 equal sides and 4 right angles. Opposite sides are parallel.
Square
A Quadrilateral with 4 sides and 4 right angles. Opposite sides are parallel.
Rectangle
A polygon with 3 sides and 3 angles.
Triangle
A polygon made with a continuous line which is always the same distance from the center.
circle
A straight path that goes without end in two direction
line
Part of a line that has one end point and goes in one direction without end.
ray
Part of a line with two end points.
Line Segment
Two rays with the same end point.
angle
An angle that is 90 degrees (It makes a square in the corner).
right angle
Line segments of a polygon.
side
The point where two sides meet. (Shared end points of the line segments of a polygon.)
vertex
A polygon with 4 sides and 4 angles.
Quadrilateral
A quadrilateral (4 sides & 4 angles) where opposites sides are parallel. (ie: Rectangle, square, rhombus, & diamond are parallograms)
Parallelogram
A quadrilateral (4 sides & 4 angles) with one pair of parallel sides.
Trapezoid
a parallelogram with four equal sides and equal opposite angles.
Rhombus
A triangle that has 3 equal sides.
Equilateral triangle
A triangle that has 2 equal sides.
Isosceles Triangle
A triangle that has one right angle. It can also be an isosceles or scalene triangle.
Right Triangle
A triangle that has no equal sides. All 3 sides are different lengths.
Scalene Triangle
A plane figure that can be folded along a line so the two parts match.
Symmetry