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Juliette [100K]
3 years ago
13

How do u do the surface area of a prism

Mathematics
1 answer:
Serggg [28]3 years ago
5 0
Since hte front and  back are the same and they are both triangles. The formula is A=1/2BH
And you can multiply by 2 since the measurements are the same.
<span>A=1/2BH
</span>A=1/2⋅1<span>⋅2
</span>A=1
1<span>⋅2=2

So the front and back's area  is 2.
<span>For the sides, the measurements are different so you have to do them separately.

The right side. It is a rectangle so this is the formula.

A=BH
A= 3</span></span><span>⋅2.2
A=6.6ft^2
<span>
</span>The left side

A=BH
A=2</span><span>⋅3
</span><span>A=6

Finally, you add the answers all together and that is the surface area of the prism.

6+6.6+2=14.6

The surface area of this prism is 14.6 sq feet.

</span>
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3 years ago
I know it’s not -2 please help!!
hjlf

Answer:

\boxed { - 4}

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