Question

Find x if the angles of a triangle are:
$x^{\circ }$, $2x^{\circ }$ and $2x^{\circ }$

• A. ${72}^{\circ }$
• B. ${60}^{\circ }$
• C. ${36}^{\circ }$
• D. ${80}^{\circ }$

Answer 1

The correct option is C ${36}^{\circ }$

From angle sum property

$x^{\circ }$ + $2x^{\circ }$ + $2x^{\circ }$ = ${180}^{\circ }$
$5x^{\circ }$ = ${180}^{\circ }$
$x^{\circ }$ = $(\frac{180}{5}{)}^{\circ }$ = ${36}^{\circ }$