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The area of a circle is 144cm².Find the radius​

User Lar
by
5.0k points

2 Answers

5 votes

Answer:

radius is
(12)/(√(\pi ) ) = 6.77 cm

Explanation:

we know,


\pi × r² = Area


\pi × r² = 144

⇒ r² =
(144)/(\pi)

⇒ r=
(12)/(√(\pi ) )

∴ r=
(12)/(√(\pi ) )

pls mark this as the braniliest

User WebMatrix
by
4.7k points
2 votes

Answer:

It's a decimal, so it's around 6.771cm

Explanation:

First, divide 144cm² by pi, or 3.14. Then find the square root of the answer, giving you the radius. The formula for the area of a circle is pi x radius squared, so to find out the radius you just use this formula in reverse.

If I messed up or didn't make my explanation clear, please comment.

User Bzin
by
4.3k points