The area of a circle's formula is pi (3.14) r squared.
The radius is half the diameter, so 1.5.
7.065 is the answer.
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5,2
It is 14.00281721 or about 14 cm
circumference = pi*18 cm area = pi*92 square cm
A circle with a diameter of 8.5 cm has an area of 56.75 square cm
The area of circle that has a diameter of 6.5 cm is: 33.18 cm2