3 years ago

Find the total surface area of the prism pictured

Mathematics

2 answers:

ivann1987 [24]3 years ago

8 0

Answer:

it's 319.2

Step-by-step explanation:

When I did it i got 250.2, but i think it 319.2

Tanya [424]3 years ago

5 0

To find the surface area of a prison, we need to find the areas of all the sides

Triangles:
2(1/2(8 * 6.9)) = 55.2

Bottom rectangle:

11 * 8 = 88

Congruent rectangles:

2(8 * 11 = 88) = 176

55.2 + 88 + 176 = 319.2

B; 319.2 sq inches

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