Question

Question Number 16
1 point
16. In the given figure, OA and OB are two opposite rays, then the value of x is
(x + 10)
(x + 20°
B
o
@) 350
(6) 40°
(c) 50°
(d) 55°
​

Answer 1

Answer:

Given, x=25

o

=>3x

o

=75

o

We know that, ∠AOC,∠BOC are linear pair of angles.

=> ∠AOC+∠BOC=180

0

(2y+5)

o

+3x

0

=180

2y+5+75=180 [ ∵ 3x

o

=75

o

]

2y+80=180

2y=180−80

y=

2

100

∴y=50