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HELP AND HURRY!! PRETTY PRETTY PLEASE!!!

What is the surface area of the composite solid?
1,508 m2
1,658 m2
1,808 m2
1,958 m2

HELP AND HURRY!! PRETTY PRETTY PLEASE!!! What is the surface area of the composite-example-1

1 Answer

2 votes

Answer:

1658 m^2.

Explanation:

This equals the surface area of the exposed sides of large rectangular prism + surface area of the exposed sides of the triangular prism

= 2 * 25*10 + 2 * 15*25 + 10 * 15

+ 2 * 1/2 * 6 * 8 + 8 * 15 + 6 * 15

= 1400 + 258

= 1658 m^2.

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