Question

if x=20find the value of u

Answer 1

According to the angle in Q.1

If x = 20 degrees; 3x+10 = 70 degrees;

As a straight line denotes a 180 degree angle

So, 2y = 180 - 70 = 110

So, y = 110/2 = 55 degrees

Answer : y = 55 degrees

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