If the radius of a circle is 11cm, what is the area?

1 Answer
Don't Memorise
Jul 31, 2015

#approxcolor(blue)(380cm^2#

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= 11cm#

The area #= pir^2 = 3.14 xx (11)^2#

#=3.14 xx (121)#

#=379.94cm^2#

#approxcolor(blue)(380cm^2#

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