Question

In Abc,Ab=BC,angleB=40degree,Then angle A is equal to​

Answer 1

Answer:

100°

Step-by-step explanation:

if two sides are same then two angles will be equal then

40+40 is 80 the total angle of a triangle is 180 the another angle is 100°

Answer 2

100degree

Step-by-step explanation:

if AB is equal to BC then angle ABC is equal to a

angle BAC=40

40+40+angle ACB=180

ACB=180-(40+40)

ACB=100