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In the diagram below, if < 2 = 123 °, what would be the measure of < 7?

In the diagram below, if < 2 = 123 °, what would be the measure of < 7?-example-1

1 Answer

4 votes

Given:


\angle2=123^(\circ)

To find:

The angle 7.

Step-by-step explanation:

We know that,

The sum of the exterior angles is supplementary.

So, we can write


\begin{gathered} \angle2+\angle7=180 \\ 123^(\circ)+\angle7=180 \\ \angle7=180-123 \\ \angle7=57^(\circ) \end{gathered}

Therefore, angle 7 is 57 degrees.

Final answer:

Angle 7 is 57 degrees.

User Molf
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