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If radius of circle if 4r, the area of c...

If radius of circle if 4r, the area of circle is equal to :

A

`50 . 20 r^(2)` sq. units

B

`50 . 28 r^(2)` sq. units

C

`51 . 24 r^(2)` sq. units

D

`52 . 24 r^(2)` sq. units

Text Solution

Verified by Experts

The correct Answer is:
B
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