Question

Work out the surface area of the triangular prism below

20cm 9cm 16cm 12cm.

give your answer in cm2
please help meeee

Answer 1

Answer: 624cm²

Explanation:

front = 1/2x12x16=96

Back = 96

Bottom = 12x9=108

Left Side = 16x9=144

Right Side = 20x9=180

total surface area = 96+96+108+144+180=624cm²