What is the exact area of a circle with a diameter of 10?

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Answer 1 · 2017-03-29T00:42:32

The exact area of the circle is #pi*25#.

The formula for the area of a circle is #A=pi*r^2#.

#r=1/2d#

#r=1/2*10#

#r=5#

#A=pi*5^2##lArr# radius is #5#.

#5^2=25#

#A=pi*25##lArr# exact area of the circle, since #pi# is an irrational number.