Area of Circles

Area of Circles

• I can calculate the area of a circle given its radius or diameter.

Multiple Choice

The formula for the area of a circle is...

• $$A=\pi d^2$$  

• $$A=2\pi r$$  

• $$A=\pi\cdot d$$  

• $$A=\pi r^2$$  

Multiple Choice

I can calculate the area of a circle given its radius or diameter.

What is the area of the circle shown? Round your answer to the nearest tenth.

• $$425.2\ cm^2$$  

• $$37.7\ cm^2$$  

• $$75.4\ cm^2$$  

Multiple Choice

I can calculate the area of a circle given its radius or diameter.

What is the area of the circle shown? Round your answer to the nearest tenth.

• $$31.4\ cm^2$$  

• $$15.5\ cm^2$$  

• $$78.5\ cm^2$$  

Multiple Choice

I can calculate the area of a circle given its radius or diameter.

If the radius of a circle is 3 cm, what is the area of the circle?

• $$9.4\ cm^2$$  

• $$28.3\ cm^2$$  

• $$18.7\ cm^2$$  

Multiple Choice

I can calculate the area of a circle given its radius or diameter.

What is the area of the circle shown? Round your answer to the nearest tenth.

• $$12.6\ cm^2$$  

• $$24.1\ cm^2$$  

• $$50.2\ cm^2$$  

Multiple Choice

I can calculate the area of a circle given its radius or diameter.

What is the area of the circle shown? Round your answer to the nearest tenth.

• $$113\ cm^2$$  

• $$36.7\ cm^2$$  

• $$18.8\ cm^2$$  

Multiple Choice

I can calculate the area of a circle given its radius or diameter.

If the diameter of a circle is 11 m, what is the area of the circle?

• $$95\ m^2$$  

• $$34.5\ m^2$$  

• $$379.9\ m^2$$