Area and perimeter

Question

Part 1: Find the area and the perimeter of the rectangle with length 3√45 ft and height  √125 ft.

Answer 1

Area is 3*sqrt(45) * sqrt(125) =

3 * 3*sqrt(5) * 5 * sqrt(5) =

45*5 = 225

perimeter = 2(3)sqrt(45) + 2*sqrt(125)

6*sqrt(45) + 2 * sqrt(125) =

6*3*sqrt(5) + 2*5*sqrt(5)

18*sqrt(5) + 10*sqrt(5) =

28*sqrt(5)