Question

PLEASE PLEASE HELP

Wyatt built a new dog house and needs to paint it.

44"

42

22.5

44.5"

28"

28

42

38.6"

In order to paint the house, Wyatt multiplies the area of the base times the height then adds half the area of the base times the height.

Explain whether or not Wyatt correctly calculated the surface area of the house.

Answer 1

9514 1404 393

Answer:

Wyatt is incorrect in his calculations

Explanation:

The units of base area are square inches. When Wyatt multiplies that by height, he gets a number with units of cubic inches. This is a volume, not an area. If Wyatt is trying to compute an area, he is doing it incorrectly.

_____

Additional comment

I find units analysis to be very helpful in keeping calculations of speed, distance, area, volume, acceleration, velocity, and other physical phenomena straight. If the units come out right, chances are much better that the numbers are being combined appropriately.

Wyatt may need to be using the perimeter of the base, rather than the area of the base. Without the diagram it is tough to tell what the calculation should be.