Question

ABCD is a parallelogram. Find the measure of ZABC.12°BA130°38°12°C сD50°38°

Answer 1

The opposite angle of a paralleloram are always equal. So,

$\angle ADC=\angle ABC$

Determine the measure of angle ABC.

$\begin{gathered} \angle ABC=38+12 \\ =50 \end{gathered}$

So measure of angle ABC is 50 degree.

Correct answer is 50 degree.