Answer:
About 12 gallons
Step-by-step explanation:
Without bases, find the area of each side of each shape then multiply by four (there are four sides) and add them together
Top shape
find the area of one triangle and the multiply by four
1/2·b·h
1/2·11·15=82.5
82.5·4=330ft²
Bottom shape
find the area of one rectangle and the multiply by four
l·w
15·44=660ft²
660ft²·4=2,640ft²
Add them up
2,970ft²
To find the approximate amount, dived by the number of square ft a gallon can cover
2,970ft²/259ft²=11.467...it goes on
round up to 12
