Question

2 2. AB=AC, then find the value of x
A
Х
у
th
110°
30°
B
с
E​

Answer 1

Step-by-step explanation:

x+y+30=110

x+y=80

30+B=110

B=80

y+80=110

y=30

x+30=110

x=110-30

x=80

solution x=80 y=30

Answer 2

from the given figure AB=AC---------(1)

ANGLE ACB=180-110=70

from eq1-ANGLE ABC=ANGLE ACB=70

so,y=40

angle ADC+angle DAC=110

we know that y=40

so, x+y+30=110

x+40+30=110

x+70=110

x=40