Question

Find the diameter of a circle with an area of 94 square millimeters.

Answer 1

10.94.

Explanation:

Using the formulas

A=πr2

d=2r

Solving ford

d=2/A

π=2·94

π≈10.94004

Answer 2

10.94 mm

Explanation:

Formula to find the area of a circle is :

Area = π r²

Given that, the area of the circle is 94 mm²

Now let us find the value of r ( radius ).

Area = π r²

94 = π r²

94 ÷ π = r²

29.92 = r²

√29.92 = r

5.47 = r

And now let us find the diameter of the circle.

d = 2r

d = 2 × 5.47

d = 10.94 mm

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