Q: What is the area of a circle whose radius is 8 mm?

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The formula, when the radius is known, is: A = PI(r)2 A circle with a radius of 450 mm has an area of 636,172.51 square mm.

The square root of (4298.66/pi) = 36.9906201 or a radius of 37 mm

Just like any other circle, the area of that one is (pi) times (the square of the radius).

If the diameter of a circle is 5.4mm, then the radius is 2.7 mm. The formula for the area of a circle is PIr^2. So, the area is then 22.9 mm2.

If the diameter of a circle is 5.4mm, then the radius is 2.7 mm. The formula for the area of a circle is PIr^2. So, the area is then 22.9 mm2.

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The radius of a circle with an area of 35 mm squared is 3.34mm

27.2 mm

The area and circumference of a circle with a radius of 9.5 mm are:A = 284mm2C = 59.7mm

A circle with a radius of 50 mm has an area of 7853.98 square mm

The formula, when the radius is known, is: A = PI(r)2 A circle with a radius of 450 mm has an area of 636,172.51 square mm.

The area of a circle whose diameter is 6 mm is: 28.27 mm2

~12.56

The square root of (4298.66/pi) = 36.9906201 or a radius of 37 mm

50.265 square mm

If radius = 45 mm, then area = 6361.7 mm2 (to 1 dp).

Just like any other circle, the area of that one is (pi) times (the square of the radius).

If the diameter of a circle is 5.4mm, then the radius is 2.7 mm. The formula for the area of a circle is PIr^2. So, the area is then 22.9 mm2.