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D=6.3 mm caculate the area of the circle.

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Hello!

The area of a circle is given using the formula: A = πr².

Given that the diameter is 6.3 millimeters, we need to find the radius. Remember, the radius of a circle is half the diameter.

R = 6.3 / 2 = 3.15 millimeters

With the radius, we can substitute the values into the formula and solve.

A = π(3.15)²

A = 9.9225π

A = 9.92π (not multiplying by π), 31.17 (multiplied by π), 31.16 (multiplied by 3.14)

Therefore, the area of the circle is about 31.17 millimeters squared.

User Harmands
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