If the area of a circle is 35pie square feet, what is the radius, in feet?

1 Answer
Aug 1, 2015

Answer:

#color(green)(rapprox6# feet

Explanation:

The area of a circle is given by formula:
#color(blue)(pir^2#

Where,
#pi# has a constant value of #approx3.14#
and #r# denotes the radius.

The area of the circle is #35pi# square feet.

Equating the formula for the area of a circle with area given :

The area:
# pir^2 =35pi#

# cancelpir^2 =35cancelpi#

#r=sqrt35#

#color(green)(rapprox6# feet