Q. 25.0( 1 Vote )



B.

C. 10 cm2/sec

D. 5 cm2/sec

Answer :

The area of an equilateral triangle, with side a, is defined as

– (1)


Given that and a=10cm, we have to calculate


Differentiating (1) with respect to t, we get



Substituting the values, we get



=10√3 cm2 /sec

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