Question

Find the radius and area of a circle with a circumference of 62.8.Round your answer to the nearest tenth. Use 3.14

Answer 1

Given:

circumference of 62.8

Required:

circumference of 62.8

Step-by-step explanation:

Let r be the radius of the circle

Since the circumference of the circle is 62.8

`\begin{gathered} 2\pi r=62.8 \\ \\ 2*3.14* r=62.8 \\ \\ 6.28r=62.8 \\ \\ r=(62.8)/(6.28) \\ \\ r=10 \end{gathered}`

area of circle is

`\begin{gathered} \pi r^2 \\ \\ 3.14*10*10 \\ \\ =314 \end{gathered}`

Required answer:

10, 314