A square sheet of rubber has sides that are 20 cm long. If you stretch it so that the area of the rubber is four times larger, how long is each of the sides now?
Each side = cm

40

Explanation:

The area is 400cm^2 but the area on each side is 40cm.

less than one you can't create energy

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;