Question

Find the measure of the unknown angle ​

Answer 1

Answer:

To determine to measure of the unknown angle, be sure to use the total sum of 180°. If two angles are given, add them together and then subtract from 180°. If two angles are the same and unknown, subtract the known angle from 180° and then divide by 2.

Answer 2

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$\bf\implies x+30°+100°=180°$

$\bf\implies x+130°=180°$

$\bf\implies x=180°-130°$

$\bf\implies x=50°$