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4. Angles, Lines and Triangles
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Q13 of 153 Page 129

In the given figure, AB||CD. Find the value of x, y and z.

Z=75, x=35, y=70


Given AB||CD


Therefore,


X = 35°[Alternate angles]


In triangle AOB,


⇒ x + 75° + y = 180°


⇒ 35° + 75° + y = 180°


⇒ y = 70°


⇒ ∠COD = y = 70°[Opposite angles]


In triangle COD,


⇒ z + 35° + ∠COD = 180°


⇒ z + 35° + 70° = 180°


⇒ z = 75°


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Questions · 153
4. Angles, Lines and Triangles
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