Question

of radii of two concentric circles are 28 cms and 18cms respectively. if the perimeter and the area of the circle are numerically equal.than find the radius of the circle.
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Answer 1

Step-by-step explanation:

As we know that,

Perimeter of circle =2πr

Area of circle =πr

2

Given that the perimeter and area of circle are numerically equal.

Therefore,

πr

2

=2πr

r

2

−2r=0

r(r−2)

⇒r=0 or r=2

Answer 2

Answer:

ANSWER IN ABOVE CLIP

Step-by-step explanation:

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