Question

In a ∆ABC, angle A = 100° and AB=AC,Find angle B and C​

Answer 1

Step-by-step explanation:

AB=AC

∠B=∠C [Angles opposite to equal sides are equal]

In △ABC,

∠A+∠B+∠C=180

o

100

o

+2∠B=180

o

∠B=40

o

Therefore,

∠B=∠C=40

o

Answer 2

Answer:

∆ABC is an isosceles ∆

So, angle B = angle C

So 180°-100°=80° ( because 180° is total sum of a ∆)

So 80°/2= 40°

Hence Angle B & C = 40°

Thank & mark me brainliest