Area of Circles, Half Circles, Quarter Circles

Find the area of the circle below.

• 100 cm

• 225 cm

• 9 cm

• 28.26 cm

What is the area of a circle with the diameter of 16 cm ?

• 66 cm

• 200.96 cm

• 66.5 cm

• 10 m

Miss Cansdell is using a compass to find her way out of the woods. The compass has a radius of 4 centimeters. What is the compass's area?

• 49.2 cm²

• 45.6 cm²

• 50.24 cm²

• 55.9 cm²

A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's area?

• 31.25 m²

• 29.55 m²

• 30.36 m²

• 28.26 m²

What is the area of this semicircle ? (d = 8 cm)

• 100.48 cm²

• 80 cm²

• 200.96 cm²

• 25.12 cm²

What is the area of this circle?

• 163.2

• 15.3

• 124.2

• 113.04

What is the area of this circle?

• 82.13m squared

• 78.5m squared

• 314.16m squared

• 170.12m squared

What is the area of this circle?

• 8322.13 cm²

• 1133.54 cm²

• 4536.46 cm²

• 1267.09 cm²

What is the area of this semi circle?

• 100.5 square cm

• 25.1  square cm

• 50.3 square cm

• 12.6 square cm

Find the area of the quarter circle

• 58.88

• 78.50

• 7.85

• 157.00