Question

I need help finding the circumference of a circle on question 4 and 6

Answer 1

Given:

4. Diameter of the circle, d = 58 yd.

6. Diameter of the circle, d = 10.2 m

Required:

We need to find the circumference of a circle.

Step-by-step explanation:

4.

Consider the formula to find the radius.

`Radius\text{ =}(diameter)/(2)`

Substitute diameter = 58 in thr formula.

`Radius\text{ =}(58)/(2)=29yd`

Consider the formula to find the circumference of a circle.

`C=2\pi r`

Substitute r =29 in the formula.

`C=2*3.14*29`

`C=182.12\text{ yd }^2`

Answer:

The circumference of a circle is 182.12 square yards.

6)

Consider the formula to find the radius.

`Radius\text{ =}(diameter)/(2)`

Substitute diameter = 10.2 in thr formula.

`Radius\text{ =}(10.2)/(2)=5.1m`

Consider the formula to find the circumference of a circle.

`C=2\pi r`

Substitute r =5.1m in the formula.

`C=2*3.14*5.1`

`C=32.028\text{ m}^2`
`C=32.03\text{ m}^2`

Answer:

The circumference of a circle is 32.03 square meters.