Find the Area of Triangle ABC with the Given Parts $1.7$

Multiple Choice

Find the area of triangle ABC with the given parts. Round to the nearest tenth when necessary.
-A solar reflector is made using 32 identical triangular-shaped mirrors, each having sides $1.7$ meters, $2.3$ meters, $1.4$ meters. What is the total surface area of the reflector (to the nearest square meter) ?

A) $45 m ^ { 2 }$
B) $38 \mathrm {~m} ^ { 2 }$
C) $35 \mathrm {~m} ^ { 2 }$
D) $33 \mathrm {~m} ^ { 2 }$