i added photo.Book said the answer is 35 degree,but how to get it.Plz help...
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Answer:
Yes book is right
the correct answer is 35 degree
plz mark as brainlest
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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
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