Area, Perimeter & Circumference

Front

What is the formula for the area of a rectangle?

Back

Area = length × width

Front

What is the area of a rectangle with side lengths 3 inches by 5 inches?

Back

15 square inches

Front

What is the area of a rectangle with side lengths 8 cm by 5 cm?

Back

40 square cm

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2(length + width)

Front

Find the PERIMETER of a rectangle with length 10 cm and width 5 cm.

Back

30 cm

Front

What is the formula for the circumference of a circle?

Back

Circumference = π × diameter

Front

What is the circumference of a circle with a diameter of 12 cm?

Back

37.68 cm (using π = 3.14)

Front

What is the formula for the area of a circle?

Back

Area = π × radius²

Front

Find the area of a circle with a diameter of 14 inches. Use 3.14 for π.

Back

153.86 in²

Front

What is the relationship between diameter and radius?

Back

Radius = diameter / 2