Help with height..?

the figure is a rectangular prism.. it was given to me that the surface area is 180 inches squared, the width is 5 and length is 8. Im asked to find the height.. i took notes on the lesson but i dont understand. help? :(

Question

Help with height..?

the figure is a rectangular prism.. it was given to me that the surface area is 180 inches squared, the width is 5 and length is 8. Im asked to find the height.. i took notes on the lesson but i dont understand. help? :(

anonymous · Answer

well.. if you divide 180/8 you get 22.5 and then divide that by 5. and you get 4.5..
now to get the area you basically have to multiply WxLxH which W=5, L=8, and assume H=4.5. now you multiply it all together. 5 x 8 x 4.5 = 180 :)

anonymous · Answer

your answer for H is 4.5