Question

In congruent triangles abc and def, angle a = angle e= 40degrees and angle f = 65 degrees, then angle b =?

Answer 1

Answer:

a=40°=e

Step-by-step explanation:

since angle e =angle a

the angle a is 40°

angle e=40° and angle f=65°

angle d=angle e + angle f - 180

=75°

since the triangles are congruent

angle b = angle d

so,angle b is 75°

Answer 2

Step-by-step explanation:

given that ABC and DEF are conjurent triangles and angle E = angle A =40 , angle f = 65 and angle e are equal since they are congurent triangles. similarly angle d = angle b . to find angle d observe triangle def angle e and f are given we should find angle d . w .k. t sum of all angles of a triangle add up to 180 degrees.therefore we get angle d as 75 degrees. hence angle b = d = 75degrees