Question

In the following figure, find the value of x.

Answer 1

B = [180 - {70 + 80)} = 30 degree

B = Y ( Vertical angle)

Then, y = 30 degree

Therefore, x :

[180 - { 30 + 60 )} = 90 degree

Answer 2

Step-by-step explanation:

sum of all the sides of a triangle =180°

<a+<e+<b=180°

let <b be y

70+80+y=180°

y=180-150

y=30

b=30°<b+<c+<d=180°

30+60+x=180°

x=180-90

x=90°

I have put"<" as angle