Question

find angle angle OAB I will make you brainlist​

Answer 1

Answer: 65 degrees

Step-by-step explanation:

angle AOB = 50 degrees

OA = OB (both are radii)

so angle OAB = angle OBA

Sum of angles of triangle = 180 degrees

So angle OAB + angle OBA + angle AOB = 180

2* angle OAB + 50 = 180

angle OAB = (180 -50)/2 = 130/2 = 65 degrees

Answer 2

Step-by-step explanation:

OA=OB

it means

angleOAB=angleOBA

angleAOB=50°

angleAOB+angleOAB+angleOBA=180°

50°+x+x=180°

50°+2x=180°

2x=180°-50°

2x=130°

x=130°/2

x=65°

therefore angle OAB=65°