♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

Multiply sides by 2



_________________________________


Subtract sides 156°


_________________________________



Divide sides by 17


_________________________________
Sum of the interior angles of XWVC equal 360° .
Thus in XWVC :






Subtract sides 180°


Divide sides by 15


_________________________________









♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️