1.

In the given figure, `AB||CD` and `BC||ED`. Find the value of x.

Answer» Correct Answer - `x=105`
`angleACD+angleCDE=180^(@) implies angleBCD+75^(@)=180^(@) implies angleBCD=105^(@)`.
`angleABC=angleBCD` [alternate interior `angles`] `implies x^(@)=105^(@)`.


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