Question

gu ABCD is a parallelogram. If LA al 4x+13°
and LD=(5x-22)° then find the measure of
LB and LC​

Answer 1

Answer:

$4x + 13 + 5x - 22 = 180 \\ 9x - 9 = 180 \\ x - 1 = 20 \\ x = 21$