Question

In triangle ABC,angleB=angleC and angleA=100 find angle B

Answer 1

Answer:

40

Step-by-step explanation:

angle B= angleC

angle A=100

let angle B =x

then angle C =x............(because angle B= angle C)

the sum of three angles in a triangle =180

so

Angle A +angle B + angle C=180

100+x+x=180

100+2x=180

2x = 180-100

2x = 80

x = 80/2

x = 40

then, angle B = 40

Answer 2

Answer:

ur answer us 40

it's correct i think