2 Find the value of x, so that AOB is a line. CA 3x + 10° 3x + 10° 2x B А.
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Answer:
20°
Step-by-step explanation:
We all know that a straight angle = 180°
then, 3x + 10° + 3x + 10° + 2x = 180°
8x = 160°
x = 20°
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