Question

Hlo frnds good evening....... plz solve this qstn..... I will surely mark him/her brainliest if the ansr will b correct....... ​

Answer 1

Answer:

14 cm is the radius of inner circle

Step-by-step explanation:

Let the outer radius be r1 and inner circle radius be r2.

As the area of the shaded region is in the shape of ring,

Area of ring =

$\pi \: {r1}^{2} - \pi {r2}^{2}$

770 = 22/7 (r1^2 - r2^2)

770×7/22 = 441 - r2^2

441-245 = r2^2

r2^2 = 196

r2 = 14 cm

so the radius of the inner circle = 14 cm

Kindly mark as brainliest answer.

Answer 2

Answer:

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