find the value of x . I will mark You the brainliest
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Answer:
x = 20°
Step-by-step explanation:
(∵ line O is a straight line hence the two angles are linear pair (180°) the other angle is 90° so 4x + 10 will also be 90°)
4x + 10 = 90°
⇒4x = 90 - 10
⇒x = 80°÷4
∴x = 20°
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Answer:
Why not
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