Find the value of x.

From the figure,

(19x+3) =( 11x-2) + (9x+1){ exterior angle of a triangle is equal

to the sum of 2 opposite interior angles}

now,

19x+3 = 11x-2 + 9x+1

19x-20x = -2+1-3

-x = - 4

therefore,

X = 4.

if you want to find the value of angles ,

just put 4 Inthe place of X.

and do ..

.

.

.

.Do you know a Unkn

where are the choices?