Triangles
A triangle with a right angle in it.
Right Triangle
Any 4 sided polygon
Quadrilateral
A polygon with 8 sides and angles
Octagon
A polygon with 10 sides and angles
Decagon
Formula for area of a triangle
1/2 B x h
or
B x H divided by 2
A triangle with all sides and angles equal.
Equilateral Triangle
A 4 sided polygon with all sides and angles equal.
Square
A polygon with 5 sides and angles.
Pentagon
A triangle with no sides and angles equal
Scalene Triangle
Formula for area of a parallelogram.
B x H
A triangle with acute angles in it.
Acute Triangle
A 4 sided polygon with 1 pair of parallel sides.
Trapezoid
A polygon with 6 sides and angles
Hexagon
The amount of space covered.
Area
The distance around a polygon.
Perimeter
A triangle with at least 2 sides and angles equal
Isosceles Triangle
A 4 sided polygon with 2 pairs of equal sides.
Rectangle
A polygon with 9 sides and angles
Nonagon
The formula for finding area of a rectangle
Length x width
How to find the perimeter for a polygon
Add up all the sides.
A triangle with an obtuse angle in it.
An Obtuse triangle.
Any polygon with 2 pairs of parallel sides.
Parallelogram
A polygon with 7 sides and angles.
Heptagon
How area measurements are labeled
Square units
What type of math focuses on shapes?
Geometry