Find the Area of a Circle

What is the area of a circle with the diameter of 10 cm ?

• 66 cm²

• 78.5 cm²

• 66.5 cm²

• 314 cm²

Find the area of the circle

• 21.98 units²

• 153.86 units²

• 87.82 units²

• 615.44 units²

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

Find the area of the circle below.

• 113.04 cm units²

• 18.84 cm units²

• 9 cm units²

• 28.26 cm units²

Find the area of the circle with a radius of 3 cm.

• 8.76 cm²

• 18.52 cm²

• 21.90 cm²

• 28.26 cm²

Answer explanation

Use area of a circle formula: A =πr²

A = π⋅3²

A = 9π

A = 28.27 cm²

Find the area of the circle.

• 56.52 in²

• 254.34 in²

• 1017.36 in²

• 113.04 in²

Find the area of the circle.

• 16.7 cm²

• 18.7 cm²

• 12.6 cm²

• 10.2 cm²

Find the area of the circle

• 56.52 in²

• 254.34 in²

• 1017.36 in²

• 28.26 in²

What is the formula to find the area of a circle? ​ (a)  

Find the area of the circle with a radius of 3 cm.

• 8.76 cm²

• 18.52 cm²

• 21.90 cm²

• 28.26 cm²

Answer explanation

Use area of a circle formula: A =πr²

A = π⋅3²

A = 9π

A = 28.27 cm²