Answer:

Step-by-step explanation:

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Answer:
∠BAC = 105°
Step-by-step explanation:
2(5x) = 9x+21
10x = 9x+21
reduce:
x = 21
∠BAC = 5x = 105°
Base = 3.14 x 10 x 10 = 314
height = volume/base
=6908/314
=22 feet