Question

. In the given figure, find the value of unknown angles a, b and c.
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Answer 1

Answer:

value of

a = 180 - 45 - 20

a = 115°

value of

c = 45°

because of VOA .

value of

b = 180 - 45

b = 135°

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Answer 2

Answer:

∠a = 115° ∠b = 115°  ∠c = 65°

Step-by-step explanation:

Angle a we can find out as ∠a + 45° + 20°= 180°

= 65° + ∠a = 180°

∠a= 180°- 65° = 115°

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In the figure you can see that ∠a & ∠c = 180°

∠a= 115°

So, 180°-115°=∠c

∠c = 65°

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Now = ∠b

∠ c+∠b=180°

65°+∠b=180°

∠b =180-65 = 115°

∠b =115°

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