Question

if radius of two concentric circles are 28 cm and 18 cm respectively . if the perimeter and the area of the circles numberically equal then find the radius of the circle.​

Answer 1

Step-by-step explanation:

given

The perimeter and the area of the circle are equal.

to find

The radius of the circle.

solution

We can simply solve this mathematical problem by using the following mathematical process.

Let, the radius of the circle = r unit

Area of the circle = TTr? sq. unit

Perimeter of the circle (circumference) = 2Tr cm According to the data mentioned in the

question,

Tr2 = 2nr

Tr/Tr = 2

r= 2

Hence, the radius of the circle is 2 units

hope it's helpful to you dear

Answer 2

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