Area of Polygons Pretest

Front

What is the name of this figure?

Back

trapezoid

Front

What is the area of a trapezoid with bases 5 cm and 7 cm, and height 4 cm?

Back

The area is 24 cm².

Front

What is the formula for the area of a rectangle?

Back

Area = length × width

Front

What is the area of a rectangle with length 10 cm and width 5 cm?

Back

The area is 50 cm².

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height

Front

What is the area of a triangle with base 8 cm and height 5 cm?

Back

The area is 20 cm².

Front

What is the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width)

Front

What is the perimeter of a rectangle with length 10 cm and width 5 cm?

Back

The perimeter is 30 cm.

Front

What is the formula for the area of a square?

Back

Area = side × side

Front

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

Back

The area is 16 cm².