Question

in figure BC||EF and if angle ABC=110°and angle AEF=50°, find angle EAB​

Answer 1

Answer:

60

Step-by-step explanation:

Since BC is parallel to EF, the exterior angle at the lower right vertex would be the same as at B i.e 110 (see attached image), fron that we can find the interior angle of the triangle formed by, 180 - 110 = 70

Now, since sum of all angle in a triangle is 180, we would find A by adding the measure of other two vertex

70 + 50 = 120 now subtract from 180 to get A

120 - 180 = 60 = A

so measure of angle A is 60