Question

What are the measures of angles a,b,c ?

Answer 1

a=30 , b=60, c=105

Explanation:

a=30 [Being vertically opposite angle]

Now,

a+b+90=180 [Being the sum of interior angles of a triangle]

or, 30+b+90=180

or, b+120=180

or, b=180-120

so, b= 60

Again,

c+75= 180 [Being linear pair]

or, c=180-75

so, c= 105