Circle Circumference and Area Practice Problems

The diagram shows a circle with radius 8cm. Find the area of this circle, correct to 1 decimal place.

• 201.1cm²

• 50.3cm²

• 804.2cm²

• 25.1cm²

The diagram shows a circle with radius 8cm. Find the circumference of this circle, correct to 1 decimal place.

• 201.1cm

• 50.3cm

• 804.2cm

• 25.1cm

The diagram shows a circle with diamater 16cm. Find the area of this circle, correct to 1 decimal place.

• 201.1cm²

• 50.3cm²

• 804.2cm²

• 25.1cm²

The diagram shows a circle with diameter 16cm. Find the circumference of this circle, correct to 1 decimal place.

• 201.1cm

• 50.3cm

• 804.2cm

• 25.1cm

A Circle has a radius of 4.  What is the circumference of the circle? (Best Choice)

• 4π or about 12.56

• 16π or about 50.24

• 2π or about 6.28

• 8π or about 25.12

• 22 cm

• 44 cm

• 88 cm

• 66 cm

What is the formula for finding the area of a circle?

• 
• 

What is the area of this circle?

• 82.13

• 78.54

• 314.16

• 170.12

The diagram shows a circle with diameter 12cm. Find the circumference of this circle, correct to 1 decimal place.

• 113.1cm

• 452.4cm

• 37.7cm

• 18.8

The diagram shows a circle with diameter 12cm. Find the area of this circle, correct to 1 decimal place.

• 113.1cm²

• 452.4cm²

• 37.7cm²

• 18.8²