Find the value of y in the given figure:
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Answer:
According to formula: 50⁰ + y⁰ = 130⁰
=> y⁰ = 130⁰ - 50⁰ = 80⁰
Therefore, y = 80⁰
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angle ACD + angle ACB =180.... angles in linear pair
130+ x =180
x=180-130
x=50
:. angle ACB =50
In ABC
angle A +angle B+ angle C =180 ... angle sum property
50° + y+50°=180
100° + y=180
y=180-100
y=80°
:. Angle ABC = y = 80°
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