Mark the correct alternative in the following:
Each side of an equilateral triangle is increasing at the rate of 8 cm/hr. The rate of increase of its area when side is 2 cm, is
The area of an equilateral triangle, with side a, is defined as
– (1)
Given that and a=2cm, we have to calculate
Differentiating (1) with respect to t, we get
Substituting the values, we get