Area and Perimeter

Front

What is the formula to find the area of a rectangle?

Back

A = l⋅w, where l is the length and w is the width.

Front

What is the formula to find the area of a triangle?

Back

A = b⋅h/2, where b is the base and h is the height.

Front

What is the formula to find the area of a trapezoid?

Back

A = (b1 + b2)⋅h/2, where b1 and b2 are the lengths of the two bases and h is the height.

Front

What is perimeter?

Back

Perimeter is the total distance around a two-dimensional shape.

Front

What is area?

Back

Area is the amount of space inside a two-dimensional shape.

Front

Find the area of a rectangle with length 5 units and width 3 units.

Back

15 units².

Front

Find the area of a triangle with base 4 units and height 3 units.

Back

6 units².

Front

Find the area of a trapezoid with bases of 5 feet and 7 feet, and a height of 3 feet.

Back

18 square feet.

Front

What is the area of a square with side length 4 units?

Back

16 units².

Front

If the perimeter of a rectangle is 20 units and the length is 6 units, what is the width?

Back

4 units.