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The perimeter of a circle is called the circumfernece.

Circumference = Pi * d, where d is the diameter of the circle.

Area = Pi * r2 , where r is the radius of the circle.

=> d*Pi = 450

{divide by Pi on both sides}

=> d = 450/Pi

{r = d/2, use substiution}

=> r = 225/Pi

{substitute in to Area formula}

=> Area = Pi * (225/Pi)2


=> Area = 2252/Pi

Area of a circle with a circumference of 450m = 16114.43799m2

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∙ 14y ago
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Q: The perimeter of a circle is 450 meters what is the area?
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