Question

If the figures shown are congruent, what is the value of x? (Hint: The sum of the three angles of any triangle is 180°.)



38°
100°
80°
42°

Answer 1

I can solve it, but I need the diagram (or a clear description of which angles correspond). Could you either upload the figure or describe it (for example: "Two congruent triangles side-by-side; in one triangle the angles are 38°, x, and a marked angle equal to 100° in the other triangle," or list the labels and which angles are given)?

If you prefer to try it yourself, here are the steps to use once you provide which angles correspond:
- Use congruence to set corresponding angles equal.
- Use the fact that the three angles in any triangle sum to 180° to find the missing angle(s).
- Use linear-pair/supplementary relationships if any straight lines appear.

Send the picture or description and I’ll compute x and show the work.