Question

find measure of angle ecd where ao is parallel to cd and ob is parallel to ce​

Answer 1

Answer:

Given that, AO ll CD, OB ll CE and angle AOB=50 degrees

≤AOD = ≤CDB =50degree

[corresponding angles are equal]

Then,

≤ECD+≤CDB=180degree. [consecutive interior angles are supplementary]

≤ECD+50=180degree

≤ECD=180-50

≤ECD=130 degree.