Question

The areas of two concentric circles are 314 m' and 706.5 m. Find the radii of both the circles
(Take pie = 3.14)
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Answer 1

Answer:

15,10

Step-by-step explanation:

see this pic clearly

Answer 2

Answer:

Step-by-step explanation:

Let radius of smaller circle be r and it's area be a

Let radius of bigger circle be R and it's area be A

Given, a=314m² A=706.5m²

a=3.14r² A=3.14R²

314=3.14r² 706.5=3.14R²

r²=100 225=R²

r=10 R=15