πr^2 = 78.5, so r=√(78.5/π)
C = 2πr = 2π√(78.5/π) = √(314π) ≈ 10√π3
The area of circle is 78.5 cm square. Calculate the circumference of the circle
3 answers
area of a circle is pirsquared
pi will be equated to 3.14
so 3.14xr^2=78.5
to get r^2=78.5 divided by 3.14
to get r u will get the square root of the answer u got and to get the diameter u multiply the radius by two
circumference is equals to pi x d
which is 3.14 x diameter
pi will be equated to 3.14
so 3.14xr^2=78.5
to get r^2=78.5 divided by 3.14
to get r u will get the square root of the answer u got and to get the diameter u multiply the radius by two
circumference is equals to pi x d
which is 3.14 x diameter
ur mom