Question

In triangle ABC angle A =100 and AB=AC findB? ​

Answer 1

$\huge\mathfrak{Solution}$

Given :-AB= AC ,A=100

To Find = B

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we know that if opposite sides of traingle are equal then the angels are also equal

so B=C

we suppose B=x and C=x

By angle sum property

angle A + Angle B + Angle C = 180

we know A=100 , B= x and C =x

putting these values

100+ x + x = 180

100+ 2x =180

2x=180 -100

2x=80

x=80/2

x=40 .

B=40 Answer....

Answer 2

$\huge \mathfrak \green{answer}$

AB=AC

THEN, ANGLE B =ANGLE C

LET, ANGLE B=ANGLE C=x

SUM OF ANGLE IN TRIANGLE =180

100+x+x=180

120+2x=180

2x=60

X=30

Therefore angle B AND C=30

$\huge \boxed{hope \: it \: helps \: u}$