Answer :
Area of any triangle:
A = 1/2 b h
The dimensions are the b and h, it doesn't matter which is which since you're multiplying.
isosceles: A = 1/2(20)(35) = 350ft²
equilateral: A = 1/2(40)(60) = 1200ft²
Multiply each by 5ft to get the volume
350ft² * 5ft = 1750ft³
1200ft² * 5ft = 6000ft³
Add those together to get 7750ft³ of water.
A = 1/2 b h
The dimensions are the b and h, it doesn't matter which is which since you're multiplying.
isosceles: A = 1/2(20)(35) = 350ft²
equilateral: A = 1/2(40)(60) = 1200ft²
Multiply each by 5ft to get the volume
350ft² * 5ft = 1750ft³
1200ft² * 5ft = 6000ft³
Add those together to get 7750ft³ of water.