If x° and 4x° are supplementary angles then the value of x is A) 14

1.	If x° and 4x° are supplementary angles then the value of x is A) 144B) 18C) 36D) 180
Answer» Correct option is (C) 36 Given that \(x^\circ\) and \(4x^\circ\) are supplementary angles. \(\therefore\) \(x^\circ+4x^\circ=180^\circ\) \(\Rightarrow\) \(5x^\circ=180^\circ\) \(\Rightarrow\) \(x^\circ=\frac{180^\circ}5=36^\circ\) \(\therefore\) x = 36 Correct option is C) 36

If x° and 4x° are supplementary angles then the value of x is A) 144B) 18C) 36D) 180

Answer»

Correct option is (C) 36

Given that \(x^\circ\) and \(4x^\circ\) are supplementary angles.

\(\therefore\) \(x^\circ+4x^\circ=180^\circ\)

\(\Rightarrow\) \(5x^\circ=180^\circ\)

\(\Rightarrow\) \(x^\circ=\frac{180^\circ}5=36^\circ\)

\(\therefore\) x = 36

Correct option is C) 36