Question

The radius of a circle is 4 feet. What is the circle's area?
=4 ft
Use 3.14 for a

Answer 1

50.14 square feet/feet square

Explanation:

`{ \red{ \sf{given : - }}}`

`{ \green{ \sf{r = 4 \: }}}`

`{ \green{ \sf{\pi = 3.14}}}`

Area of circle =
`{ \red{ \sf{ \pi{r}^(2)}}}`

`{ \red{ \sf{3.14 * {(4)}^(2)}}}`

`{ \red{ \sf{3.14 * 16}}}`

`{ \red{ \sf{50.14 feet²}}}`

Answer 2

The area of a circle of radius r is given as;

`A=\pi r^2`

using 3.14 for pi and 4 feet for the radius, we obtain the radius as;

`A=3.14*4*4=50.24ft^2`

Therefore, the area of the circle is 50.24 square feet.