Question

In the given figure,​

Answer 1

Answer:

(A) 40°

Step-by-step explanation:

OA=OB (radius)

angle OAB =angle OBA = 50°

therefore <AOB = 80°

<ACB = 1/2 <AOB = 40°

Answer 2

Answer:

a)40

Step-by-step explanation:

if angle oab=50

then,

angle oba=50

so,some of angles in a triangle is 180 degrees

so,angle aob =80

if angle c=x

then,angle o=2x

therefore,x\2=80\2

=40 degrees