Question

The third side is described in relation to one of the equal sides, so let x = the length of one of the equal sides. Which equation models the problem? x + x + (5 – 2x) = 23 x + x + (2x – 5) = 23 x + x + (2x + 5) = 23 x + (2x – 5) + (2x – 5) = 23

Answer 1

It's B and the length of the third side of the triangle is 9cm.

Explanation:

One of the two equal sides S. Both of them 2S. The third side is 2S5. The perimeter is 2S2S5 and that's 23. So 4S5 23, then 4S28, and S7. The third side is 2S5, and that's 9.

Answer 2

its b

Explanation:

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