Question

In the following figure, find the measures of the angles marked by the letters
a,b and c.
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Answer 1

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Answer 2

Answer:

C=B = 130° and A= 50°

Step-by-step explanation:

we know in this ∆

90° + 40° + A = 180° (Angle Sum Property)

130°+ A = 180°

A= 180°- 130°= 50°

Now,

a and b are in form of linear pair

so, A + B = 180°

50° + B = 180°

B = 180°-50°= 130°

C = B ( vertically opposite angles )

C= 130 °