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Find the circumference and area of a circle that has a rectangle inscribed inside it with sides that are 9 by 12 centimeters Write your answer as decimals rounded to the nearest hundredth?
Wiki User
∙ 13y ago
9.00
Norwood Mayert
Wiki User
∙ 13y agoFirst you need to find the diagonals. You can use the Pythagorean Theorem to do this
92+122=c2 (c is the length of the diagonal)
81+144=c2
225=c2
c=15
The diagonals are equal to the diameter of the circle.
Now find the circumference.
C=(3.14)(15)
C= 47.1 cm
Finally, find the area
A=(3.14)(152)
A=(3.14)(225)
A=706.5 cm2
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