Question

I need more explains for radius and circumference and area of circle

Answer 1

Given:

The diameter of the circle is, d = 25 ft.

Required:

We need to find the rado\ius, circumference, and area of the circle.

Step-by-step explanation:

`W\text{e know that radius =}\frac{diam\text{ter }}{2}`

Substitute diameter =25 in the formula.

`radius=(25)/(2)`

`radius=12.5\text{ feet.}`

Consider the formula to find the circumference of the circle.

`C=2\pi r`

Substitute r =12.5 in the formula.

`C=2*3.14*12.5`
`C=78.50\text{ feet}`

Consider the formula to find the area of the circle.

`A=\pi r^2`

Substitute r =12.5 in the formula.

`A=3.14*(12.5)^2`

`A=490.63\text{ feet}^2`

Final answer:

`radius=12.5\text{ feet.}`

`circumference=78.50\text{ feet}`

`area\approx490.63\text{ feet}^2`