Question

the area of a circle is found with the formula A=(pi)r^2, where pi represents 3.14. If a tile artists is laying down tiles in a circular mosaic pattern and the area of the circle 706.5 square feet, what is the radius of the circle in feet?

Answer 1

706.5=3.14r^2
706.5/3.14=r^2
\[\sqrt{706.5\div3.14}\] =r^2

Answer 2

=r not =r^2

Answer 3

it says the choices are
A. 11
B. 13
C. 15
D. 17

Answer 4

its 15