Question

Help I will be marking brainliest!!

Answer 1

Answer:

Given: base = 10.4ft, height = 12.5

Area of octagon = 8(1/2 × b × h)

• 8(1/2 × 10.4 × 12.5)
• 520ft²

Volume of pool = 520ft² × 3ft

• 1560ft³

Now, 1 cubic ft takes 7.5 gallons to fill.

Therefore, 1560 cubic ft takes,

• 1560 × 7.5
• 11700

So, Correct choice - [D] 11,700.