Question

3 questions:

1. The radius of a circle is 4 in. What is the approximate area of the circle?
2. The diameter of a circle is 10 in. What is the approximate circumference?
3. What is the value of angle h?

Please help 50 points!!!!

Answer 1

Explanation:

1) The radius of circle is 4cm

The area of the circle is

`\pi ^(2)`

`(22)/(7) *4*4\\`

`(22)/(7) *16=50.24cm^(2)`

2)

Circumference of the circle =
`\pi d`

Circumference of the circle = 3.14 * 10

Circumference of the circle = 31.4 inches