Question

Find the value of a, b and c in the following figure.​

Answer 1

Answer:

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A = 60

B = 50

C = 70

Step-by-step explanation:

Given that angle OAB is 60° and angle ACR is 110°

Angle OAB = a (alternate angle property)

60 = a

a + b = angle ACR ( exterior angle property)

60 + b = 110

b = 110 - 60

b = 50

Angle AOC

b+c+60 = 180 (linear pair property)

110 + c = 180

C = 70

Answer 2

Answer:

a°= 60° because it's vertically opposite angles.

b° = 180-60 =120°. Because it's linear pairs.

c°=b° =120°. Because it's vertically opposite angles.

I hope it helps you.