Question

Q5: In the adjoining diagram, line AB and CD intersect at 0.
If 21+ 23= 78, find the measure of /_2 ​

Answer 1

Answer:

Answer :141 degree

Step-by-step explanation:

because, angle 1 and 3=78 degrees

so, both angles 1 and 3 r equal

so divide it 78/2=39 degrees

then angle 1and 2 r linear pair

so, 180-39=141

Answer 2

Answer:

angle 1 + angle 3 =78. angl 2 = 180-39=141