If the radius of a circle is 4 ft, what is the area of a circle?

1 Answer
Jul 31, 2015

Answer:

#approxcolor(blue)(50#square feet

Explanation:

The area of a circle is given by formula:
#color(blue)(pir^2#
Where,
#pi# has a constant value of #3.14#
and #r# denotes the radius.

The radius of the circle is #r= 4#ft

The area #= pir^2 = 3.14 xx (4)^2#

#=3.14 xx (16)#

#=50.24# square feet

#approxcolor(blue)(50#square feet