Question

In the given figure, if l1 || l2, then what is the value of y?​

Answer 1

We know that l₁ and l₂ are parallel.

Thus, we can use Alternate Interior angles to solve.

We know that 3x + x = 180

4x = 180

x = 180/4

x = 45

Now, x and y are a linear pair

x + y = 180

y = 180 - x

y = 180-45

y = 135

Hope this Helped!

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