Question

i added photo.Book said the answer is 35 degree,but how to get it.Plz help...

Answer 1

Answer:

Yes book is right

the correct answer is 35 degree

plz mark as brainlest

Answer 2

Step-by-step explanation:

Easy explanation

AO=OB(RADIUS OF CIRCLE)

OA _| C ( RaDIUS IS PERPENDICULAR TO THE TANGENT)

ANGLE/OAC=90°,LET

Angle OBA= angle OAB=X (angle opposite to equal sides are equal)

hence above by the information

x+x+70=180

2x=110

x=55°

angle

BAC+OAB=90°{BECAUsE OA IS PERPENDICULAR TO C}

ANGLe BAC=90-OBA

BAC=90-55

BAC=35 ANSWER