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Find the surface area of this triangular prism

5 cm
3 cm
11 cm
4 cm
n 144 square centimeters
a 138 square centimeters
156 square centimeters
also what is lateral surface

Find the surface area of this triangular prism 5 cm 3 cm 11 cm 4 cm n 144 square centimeters-example-1

1 Answer

3 votes

Answer:

This may not be the numbers but just follow the way in how i did it hope it helps!!!

Explanation:

SA= 2lw x 2lh x 2wh

Length - 5m

Width - 4m

Height - 6m

= 2 (5 x 4)+2 (5 x 6)+2 (4 x 6)

=2 ( 20)+2 (30)+2 (24)

= 40 + 60 + 48

=148

The dimensions of a second rectangular prism that will have the same surface area will be the below:

Length - 6m

Width - 5m

Height - 4m

SA = 2lw + 2lh + 2wh

= 2(6 x 5)+2 ( 6 x 4) +2 ( 5 x 4)

=2(30)+2 (24)+2 (20)

=60 + 48 + 40

= 148

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