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Fantom [35]
3 years ago
12

A circle has an area of 324╥ cm². What is the radius?

Mathematics
2 answers:
Igoryamba3 years ago
8 0
The area of a circle has the formula A = pi * r^2. Since the area is known, we could determine the radius of the circle.

A = pi*r^2
324*pi = pi*r^2
324 = r^2
r = square root (324)
r = 18

The answer is 18 cm.
Stolb23 [73]3 years ago
3 0
<span>I got 18 x 18 = 324.</span>
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Given : Expression 3\sqrt{1089}

To find : Select the expression that is equivalent to expression ?

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