Question

A round clock has a radius of 5 cm. what is the approximate area of the clock? use 3.14

Answer 1

78.5 cm^2

Explanation:

The area of a circle can be found using:

`a=\pi r^2`

We know that the radius is 5 cm. We also know that we are using 3.14 for pi. Therefore, we can substitute 5 in for r, and 3.14 in for pi.

a=3.14*5^2

Evaluate the exponent

a=3.14*(5*5)

a=3.14*25

Multiply

a=78.5

The area of the clock is 78.5 cm^2