Asked by Kernisha
What is the circumference of the circle if the area of the square is 25m to the second power?
Answers
Answered by
MathMate
Area of a circle with radius r,
A = πr² ...(1)
Circumference of a circle with radius r,
C = 2πr ...(2)
If A=25 m²
25=πr^sup2;
r=√(25/π)
=5/√π
Calculate value of r and substitute into equation (2) above to find circumference (in metres).
A = πr² ...(1)
Circumference of a circle with radius r,
C = 2πr ...(2)
If A=25 m²
25=πr^sup2;
r=√(25/π)
=5/√π
Calculate value of r and substitute into equation (2) above to find circumference (in metres).
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