Answer:
that's all I could do.hope it helps.
1. x°= 30° (Check image 1).
2. x°= 46° (Check image 2).
3. x°= 20° (Check image 3).
3. x°= 53° (Check image 4).
Explanation:
Note. The sum of all internal angles of a triangle always equals 180°.
Check image below.
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