Question

If AB is parallel CD, CD is parallel EF and b:c=4:5 then find a,b,c​

Answer 1

Answer:

hope it will help you

Step-by-step explanation:

Given,

AB∥CD and CD∥EF

y:z=3:7

Now, x+y=180

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(Angles on the same side of transversal.)

Also, Let ∠O=∠Z (Corresponding angles)

and ∠Y+∠O=180

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(Linear pair)

⇒y+z=180

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According to the question,

y=3w and z=7w

3w+7w=180

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⇒10w=180

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⇒w=18

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∴y=3×18

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=54

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and z=7×18

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=126

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Now, x+y=180

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⇒x+54

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=180

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⇒x=126

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