88×81%22 find the root.
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Example: If the area of a circle is 88π in2. Find the radius of the circle.
Solution:
Let 'r' be the radius of the circle.
⇒ Area of the circle = πr2 = 88π in2
⇒ r = ±√88 in
Since radius can't be negative,
⇒ r = √88
The square root of 88 is 9.381.
⇒ r = 9.381 in
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