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3 years ago

The X multiple answers are 60 or 55 or 9 or 27 and

Mathematics

1 answer:

Molodets [167]3 years ago

5 0

Step-by-step explanation:

It is an isosceles triangle , it has two equal angles both 55°.

All Isosceles triangles have two equal angles and two equal sides.

So in this case x +18 is equal to 3x, and to find x you will equal them to each other to create a linear equation and solve.

x + 18 = 3x

x - 3x = -18

-2x = -18

× = -18 / -2

× = 9 (ans)

Hope I was able to help. Good Luck :)))

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tekilochka [14]

Answer:

SA = 664 in.²

Step-by-step explanation:

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Where,

Length (L) = 16 in.

Width (W) = 5 in.

Height (H) = 12 in.

Substitute the values

Surface area of the rectangular prism = 2(16*5 + 16*12 + 5*12)

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B.

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Ymorist [56]

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