Question

In the figure given below, the value of ($\angle x$ + $\angle y$) is:

• A. ${80}^{\circ }$
• B. ${100}^{\circ }$
• C. ${120}^{\circ }$
• D. ${60}^{\circ }$

Answer 1

Answer: (B)

${100}^{\circ }$

As the exterior angle of the triangle is equal to the sum of interior opposite angles.

$\therefore$ in $△ABC$

$\angle x+\angle y={100}^{\circ }$

So option $B$ is correct.