9514 1404 393
Answer:
6 bottles
Explanation:
Each triangular face has an area of ...
A = (1/2)bh
A = (1/2)(14 ft)(8 ft) = 56 ft²
The square base has an area of ...
A = s²
A = (14 ft)² = 196 ft²
Then the total area of 4 faces and the base is ...
SA = base area + 4 × face area
SA = 196 ft² + 4×56 ft² = 420 ft²
The number of bottles required to cover this area is ...
(420 ft²)/(75 ft²/bottle) = 5.6 bottles
Trent needs 6 bottles of waterproof spray.
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Additional comment
The geometry described here cannot exist.
If the base and slant height are correct, the tent will be about 3.9 feet tall. If the base and height are correct, the tent will have a slant height of about 9.2 feet. If the height and slant height are correct, the base will be about 10.6 feet.