Question

in parallelogram ABCD angleB - angleC = 30° ,then find all angle quadrillater ABCD​

Answer 1

Answer:

105degrees

in a parallelogram sum of adjacent angles are=180° degrees so:-

angle C + angle B =180_______(1)

then

angle C- angle B = 30

by adding both equation we get,

2a=180+30

2a=210

a=210/2

so:-a =105

so the answer id 105 degrees