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35 votes
35 votes
Find the total surface area of this triangular prism.

13 cm
12 cm
15 cm
20 cm
5 cm
9 cm

Find the total surface area of this triangular prism. 13 cm 12 cm 15 cm 20 cm 5 cm-example-1
User Aref Karimi
by
2.4k points

1 Answer

22 votes
22 votes
We have been given an image of a triangular prism. We are asked to find the total surface area of the the prism.
The total surface area of the prism wold be sum of areas of all faces.
First of all, we will find the area of base and other two rectangles on sides.





Now we need to find the area of two triangular faces.





Therefore, the total surface area of the prism is 1008 square cm.
User Swatantra Kumar
by
2.9k points