Question

find x. (∆OAB=40°.
plz help me​

Answer 1

Answer:

OAB=ABO(because both angled on same segment of circle )....1

so

in ∆OAB

AOB+OAB+ABO=180(sum of all angles of triangle)

AOB+OAB+OAB=180(OAB=ABO)

AOB+2OAB=180

40+2OAB=180

2OAB=180-40

OAB=140/2

OAB=70

Step-by-step explanation:

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