Question

please tell this question​

Answer 1

Answer:

∠y = 180°- 100°= 80 °

sum of exterior angle = sum of two interior opposite angle

∠115°= ∠x + ∠y

∠x=115° - 80 °

    =35°

Answer 2

Answer:

1 x=35*

y=80*

Step-by-step explanation:

According to triangle angle y and 100* angle lie on a straight line in which sum of both angle is 180*

100*+y=180*

Y=180*-100*

Y=80*

In triangle thete are three angles x, y let us consider third as z

Now z and 115 *angle also lie on same line

Atq

115*+z =180*

Z=180*-115*=65*

Now we will find the value of x

According to angle sum property of triangle

X+y+z=180*

X+80*+65*=180*

X+145*=180*

X=180*-145*=35*