Question

The sides of a square are increasing at a rate of 10 cm/sec. How fast is the area enclosed by the square increasing when the area is 150 cm^2.

Answer 1

start by assigning a variable to represent the side length of the square. lets call it x.

now, what would be the area of the square in terms of x?

Answer 2

100?

Answer 3

no - what is the area of a square if its side length is equal to x?

Answer 4

I don't get it