What is the diameter of 71.5 cm2?

Question

What is the diameter of 71.5 cm2?

Answer 1

The area of a circle is Diameter^2 x Pi / 4

71.5 = D^2 x 3.1415 / 4

D = 9.54cm

Answer 2

D (diameter)

R (radius)

A (Area)

A      = pi x R^2

71.5 = 3.14159 x R^2

R^2  = 22.76

R      = 4.77

D      = 2 R = 9.54 cm

Answer 3

Question is too vague to answer, despite the answer you already have... they are making assumptions that may not be correct.

Diameter of what? Area's do not have diameters!

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