Solve the Problem $$15 \mathrm { ft } ^ { 2 }$$

Multiple Choice

Solve the problem.
-Tia is going to stain her triangular concrete patio. The patio is approximately 15 feet by 18 feet by 10 feet. If one can of stain covers $$15 \mathrm { ft } ^ { 2 }$$ how many cans of stain will she need?

A) 66 cans
B) 2 cans
C) 90 cans
D) 5 cans