The two equal sides of an isosceles triangle with fixed base are decreasing at the…

MATHEMATICS · Subjective · AP · Calculus AB · Contextual Applications of Differentiation · Contextual Applications of Differentiation

Problem

2. The two equal sides of an isosceles triangle with fixed base

b

are decreasing at the rate of 3 cm per second. How fast is the area decreasing when the two equal sides are equal to the base ?