Question

in a
triangle abc if angle equal to 120 and AB equal to AC find angle b and angle c
​

Answer 1

Answer:

the ans is b=30 and c=30

Step-by-step explanation:

here we can se that line AB and AC are equal so it is an isosceles triangle so angle b and c are equal.. so

180°= 120+b+c

180°=120+2b (since b=c)

180°-120°=2b

b=30°

therefor

b=c=30°

Answer 2

AC = AB,

angle B = angle C

angle A + angle B + angle C = 180 ( Angle Sum Property)

120 + 2angle B = 180 ( As angle B = angle C)

2angle B = 180-120=60

angle B = 60÷2=30 = angle C