Find the Area of Triangle ABC with the Given Parts $^ { 2 }$

Multiple Choice

Find the area of triangle ABC with the given parts. Round to the nearest tenth when necessary.
-A stained glass window is composed of 20 triangular sections, each with sides 4,7 , and 8 in. Find the total area of the window (to the nearest square inch) .

A) 280 in. $^ { 2 }$
B) 14 in. $^ { 2 }$
C) 91 in. $^ { 2 }$
D) $3849 \mathrm { in } ^ { 2 }$