Question

In the given figure, the value of angle 'o' is
A
A) 30°
B) 60°
100
C) 45°
BA 100_3
D) 90°
IC С​

Answer 1

Answer:

Since the sum of all angles in a triangle is 180

o

So, ∠C=180

o

−60

o

−80

o

=40

o

⇒40

o

=2x

⇒x=20

o

Similarly ∠y=180

o

−20

o

−30

o

=130

o