1.

An angle is thrice its supplement. Find it.A. `120^(@)`B. `105^(@)`C. `135^(@)`D. `150^(@)`

Answer» Correct Answer - C
Let the angle be `x^(@)`
`:.` Its supplement `=(180-x)^(@)`
`x=540^(@)-3x^(@)`
`x^(@)=135^(@)`.
Hence, the correct option is ( c).


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