Question

A circular satellite dish antenna has a circumference of about 62.8 inches. Find it’s diameter. use 3.14 for π

Answer 1

The formula for the circumference of a circle is as follows:

`C=\pi d`

where C is the circumference and d is the diameter of the circle.

Substitute the value of the circumference and the approximate value of π into the equation.

`62.8=3.14d`

To solve for d, divide both sides of the equation by 3.14.

`\begin{gathered} (62.8)/(3.14)=(3.14d)/(3.14) \\ 20=d \end{gathered}`

Thus, the diameter is 20 inches.