multiplying the radius by  $\pi$  .

dividing the diameter by 2.

multiplying the radius by 2.

$A\ =\ \pi r^2$

$A\ =\ \pi d$

$C\ =\ 2\pi$

 $12.56\ in$  

 $25.12\ in$  

 $50.24\ in$  

$113.04\ ft^2$

$124\ ft^2$

$156\ ft^2$

$200.96\ m^2$

$100.48\ m^2$

$150\ m^2$

$$254.34\ in^2$$

$$113.04\ in^2$$

$$1017.36\ in^2$$

$986.5\ cm^2$

$706.5\ cm^2$

$314\ cm^2$

It was very helpful

It was helpful

It was a little help

it was no help at all

I would like that very much

I didn't like the Edpuzzle videos

I can take it or leave it