Answer:
Height= 7in
Explanation:
Use the surface area formula and pulg in.
2(wl)(hl)(hw)=286
divide by 2 to get it to the other side.
143=45+9h+5h
subtract 45 and divide by 14 (9+5)
the height is 7
7
The surface area is the lateral area plus the base area. The base area is 9*5=45. Since there are two bases, its 90. Subtract that from 286 to get the lateral surface area, which is 196. The lateral surface area is the base perimeter*height. The base perimeter is 9+9+5+5= 28. 196/28=height. The height is 7
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