Question

FInd the surface area of the triangular prism

Answer 1

273.7

Explanation:

first fine the sides that isn't the base.

triangle area formula: (b*h)/2

(14*9)/2 = 63

since there are 3 sides you multiply this by three.

63*3=189

then find the base.

same formula since its a triangle.

(12.1*14)/2 = 84.7

now add them both up:

84.7+189 = 273.7

hope this helps!

Answer 2

273.7 mm²

Explanation:

Area of base:

• 1/2*14*12.1= 84.7 mm²

3 faces are same:

• 3*1/2*14*9= 189²

Total:

• 84.7+189= 273.7 mm²