Question

Using the net below, find the surface area of the triangular prism.

4cm

4cm
7cm


5cm

5cm

8cm

PLEASE HELP

Answer 1

`\boxed{\underline{\tt Surface\: area= 123 cm^2}}`

Explanation:

Surface area of the triangular prism:

`\tt [(5*4)+(7* 5)+(8* 5)+1/2(7* 4)+1/2(7*4)] cm^2`

`\tt [20+35+40+14+14] cm^2`

`\tt [60+63]cm^2`

`\tt 123cm^2`

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