Question

find the radius of a circle whose area is twice the area of a circle radius 14 cm ? ​

Answer 1

Step-by-step explanation:

So , radius of the other circle is 14 cm then the area of that circle will be πr² = 22/7X 14 X 14 = 616 cm²

According to the question, the area of the first Circle is twice the arear of other circle so area of first circle= 2 X 616 = 1232cm²

now we have to find the radius of the circle.

we know tha that radius of a circle is area/π under root

= 1232/22 X 7 = √392 = 19.789.... cm

so the radius will be 19.789...

Hope you understand it

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