Find the surface area of the triangular prism

 96 square units

Step-by-step explanation:  5 surfaces added together: top & bottom bases, 3 more vertical faces

The areas of the triangular bases  Two of them so 12 u²

Front face: 6×7 = 42 u²

Back faces:  3×7 = 21 u² .Two of those, so 42u²

Add those together:  12 + 42 + 42 = 96

Total surface area of the prism is 96 square units

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.