In figure , AOB is a line, determine x
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madhura41:
Ans is 20 degree
option B
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hello the answer is
(b)20°
as,
60°+40°+4x=180° [ angles forming on the same straight line]
100°+4x=180°
4x=180°-100°
4x=80°
x=80/4
x=20°
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(b)20°
as,
60°+40°+4x=180° [ angles forming on the same straight line]
100°+4x=180°
4x=180°-100°
4x=80°
x=80/4
x=20°
hope it helps you
mark it as brainliest
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