Question

find the angle B in the figure if angle A = 60

Answer 1

if a=60 
b is also =60
because they both are angles in same segment
angles in same segment are equal

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Answer 2

Answer:

B = 30°

Step-by-step explanation:

Take the center angle O

ΔACO = 60 + 90 + C = 180 ( angle sum property )

           = 150 + C = 180

           = C = 180 - 150

           = C = 30°

           ∴ hence, B = C ( alternate interior angle )

                           B = 30°

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