Question

In a triangle ABC, angle A = 100° and AB = AC. Find angle B and angle C

Answer 1

Answer:

hence Ab =. AC eq 1

angle B is equal to angle C

angle A+ B + C = 180°

angle A + 2B = 180°. from eq 1

100 + 2B = 180

B = 40°

C = 40 °

Answer 2

Answer:

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B=40 degree and C=40 degree. __________________________

Step-by-step explanation:

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Given: ABC is a triangle

in which angle A=100 degree

and, AB=AC

we know that,

A+B+C=180 degree

(since, sum of angle of triangle is 180 degree)

so,

100+B+C=180

B+C=180-100

now,

angle B=angle C (since,AB=AC)given

therefore,

B+B=80

2B=80B=80

2B=40 degree

Hence, angel B =angle C = 40 degree. both..!! ___________________________________

Thank u! I hope it help u more and more......

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