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Side of an equilateral triangle expands ...

Side of an equilateral triangle expands at the rate of 2 cm/sec. The rate of increase of its area when each side is 10 cm is (a) cm2/sec (b) cm2/sec (c) 10 cm2/sec (d) 5 cm2/sec

A

`10sqrt2 cm^(2) //sec`

B

`10 sqrt3 cm^(2) //sec`

C

`10 cm^(2)//sec`

D

`5 cm^(2)//sec`

Text Solution

Verified by Experts

The correct Answer is:
B
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