1
triangle with two sides that are the same length
2
a quadrilateral with exactly one pair of parallel sides
3
the value associated with 1 unit (5 miles per hour)
4
a parallelogram with all sides the same length
5
one of two or more numbers multiplied to make a product
6
a ratio in simplest form
7
90 degree angle
8
amount of surface covered or enclosed by a figure