Find a base length of a shipping box in the shape of a triangle prism. the shipping box has a volume of 276 cubic feet, a height of 6.9 feet, and a height of 10 feet.

The base length will be found as follows:
volume of the triangular prism is given by:
V=1/2ab×h
where:
10 ft
b=6.9 ft
thus the height will be found as follows:
276=1/2×10×6.9×h
solving for h we get:
h=276/34.5
h=8 ft

The answer to your question is b