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Answer:
a] is 8cm
Step-by-step explanation:
A=2a2+4ah
a=8cm
h=15cm
therefore A=608
a. Length of each side of the square base = 8 cm
b. Surface area of the candle = surface area of square prism = 608 cm²
Surface area of square prism = 2a² + 4ah, where a is the length of each side of the square base, and h is the height of the prism.
Volume = a²h.
Given the following:
a. Volume = a²h
Substitute
960 = (a²)(15)
960/15 = a²
64 = a²
a = √64
a = 8 cm
Therefore, the length of each side of the square base = 8 cm.
b. Surface area of the candle = surface area of square prism = 2a² + 4ah = 2(8²) + 4(8)(15)
Surface area of the candle = 608 cm²
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