Question

In $\Delta ABC$, find the value of x.

• A. ${49}^{\circ }$
• B. ${50}^{\circ }$
• C. ${51}^{\circ }$
• D. None

Answer 1

The correct option is A ${49}^{\circ }$

$AD\perp BC$
$\therefore \angle ADC=90=2x-8$
$2x=90+8$
$x=\frac{98}{2}$
$x=49$