Question

in the adjoining diagram lines ab and CD intersect at O if angle 1 + angle 3 = 78 degree find the size of angle 2 .​

Answer 1

Answer:

Thank You.

Step-by-step explanation:

angle 1+angle 3=78°. 1

angle 2+angle 3=180°. 2

subtracting eq 2 from 1

angle 2-angle 1=102°

angle 2+angle1=180

2 angle 2=282

angle 2=141°

I hope so it will be useful

please mark it as brainliest

Answer 2

Answer:

180- 78/2 is equal to the angle 2