Question

Find the value of x in iv Que

Answer 1

Answer:

now firstly

let us consider a triangle ABC

now

the sum of all angles in triangle is 180.

angle ABC+angle BCA+angle CAB=180

45+angle BCA+60=180

angle BCA+105=180

angle BCA=180-105

angle BCA=75

now

vertical opposite angles are equal

so

angle BCA=angle DCE

now

let us consider in triangle DCE

the sum of all angles in triangle is 180

angle DCE+ angle CED+angle EDC=180

75+x+80=180

115+x=180

x=180-115

x=65

Answer 2

Answer:

hii

my friend riya

you are always right .