A square pyrimaid has a volume of 605 cubic centimeters and a height of 15 centimeters . What is the area of the base ? What is the length of an edge of the base ?
Vsquare pyramd = (1/3) * Area of Base * Height ......so,,,,
605 = (1/3)* Area of Base * 15 simplify
605 = 5 * Area of Base divide both sides by 5
121 cm^2 = Area of Base
Since the pyramid has a square base...the length of an edge = sqrt (121) = 11 cm