Question

Find the value of x when m<2 = x + 64​

Answer 1

`-9 = x`

Explanation:

Since this is an isosceles triangle, the two base angles are congruent, therefore you have this:

`180° = 70° + 2[x + 64] \\ 180° = 70° + 2x + 128 \\ \\ 180 = 198 + 2x`

- 198 - 198

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-18 = 2x

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2 2

-9 = x

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Answer 2

-9

Explanation:

The triangle has two sides that are the same, so it is an isosceles triangle. Therefore, the base angles are the same.

Angles of a triangle add up to 180°, so:

70 + (x + 64) + (x + 64) = 180

70 + 2x + 128 = 180

2x = -18

x = -9