If a circle has a radius of 9 cm, how do you find the area rounded to the nearest whole number?

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Answer 1 · 2018-05-12T06:17:38

Area #= 254# sq cm (To the nearest integer)

The area of a circle with radius #r# is #pir^2# sq units

Hence, the area of a circle of radius 9cm (A) = #pixx 9^2# sq cm

#pi approx 3.14159 -> A approx 3.14159 xx 81# sq cm

#approx 254.46879# sq cm

#= 254# sq cm (To the nearest integer)