4 years ago

One side of a square is 3x + 2. Which expression represents the perimeter?

2 answers:

5 0

Hi!

When finding the perimeter of a square, you multiply the value by 4.

4(3x + 2)
12x + 8

The answer is 12x + 8

Hope this helps! :)
-Peredhel

MissTica4 years ago

4 0

Your answer would be 12x + 8 because there are 4 sides to a square and they are all 3x + 2, so you would need to multiply 3x + 2 by 4 which you can do by expanding brackets which gives you 4(3x + 2) and thus when you multiply it out you get 12x + 8. I hope this helps!

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Answers:
x=22
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Explanation:
We learned from the question that all of the angles in a triangle add up to 180 degrees.

180=angle+angle+angle

When we plug in the values that the question gives us for the angles, we get this equation:

180=x+6x+(x+4)

After solving this equation, we get 22 as the value of x (The process of solving that equation is in the picture attached).

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And finally, to solve for 6x, we plug in 22 again:

6x
=6*22
=132

Hope this helps!