Answer :
Answer:
108 square feet
Step-by-step explanation:
It is helpful to know the base length, which we can find from ...
1.5 · base = 18 ft
base = 18 ft/1.5 = 12 ft
Then the area is ...
A = (1/2)bh = (1/2)(12 ft)(18 ft) = 108 ft²
The area is 108 ft².