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Answer 1 · 2018-01-08T16:05:19

#A =153.93cm^2" "(2# decimal places)

The area of a circle can be found from the formula:

#A = pi r^2#

You are given that the radius is #7cm#

#A = pi xx 7^2#

The answer will depend on which value of #pi# you use:

If #pi = 22/7#

#A = 22/7 xx7^2#

#A= 22 xx 7#

#A= 154cm^2#

If #pi = 3.142,# or a more accurate calculator value:

#A = pi xx 7^2#

#A=153.93cm^2#