Question

The area of a circle is found with the formula a = , where represents 3.14. if a tile artist is placing tiles in a circular mosaic pattern and the area of the circle is 658 square feet, what is the approximate radius of the circle in feet?

Answer 1

14

Explanation:

Area = 3.14πr^2

We know that the area of the circle is 658. Divide 658 by 3.14 which equals 209.5 ( rounded to the nearest whole number is 210). The square root of 210 is 14.4 and rounding to the nearest whole number is 14.

Answer 2

3.14 r^2=658
r=14.47 ft