Find the Area of Triangle ABC with the Given Parts $12 \mathrm { ft } ^ { 2 }$

Multiple Choice

Find the area of triangle ABC with the given parts. Round to the nearest tenth when necessary.
-Tia is going to stain her triangular concrete patio. The patio is approximately 14 feet by 18 feet by 10 feet. If one can of stain covers $12 \mathrm { ft } ^ { 2 }$ , how many cans of stain will she need?

A) 6 cans
B) 79 cans
C) 2 cans
D) 105 cans