Question

Question 1 (vi)
Find the value of unknown x in the following diagrams.

Answer 1

$\text{In the given right angled triangle,}x+2x+{90}^{\circ }={180}^{\circ }\text{[By angle sum property of a triangle]}\Rightarrow 3x+{90}^{\circ }=180\Rightarrow 3x={180}^{\circ }-{90}^{\circ }\Rightarrow 3x={90}^{\circ }\Rightarrow x=\frac{{90}^{\circ }}{3}={30}^{\circ }$