XY is a chord o centred circle and is any point on the circle. If <OXC = 45 <OCY is
Answers
Answered by
33
Step-by-step explanation:
∠AOB+∠OAB+∠OBA=180°
(Angle Sum property)
100°
+2.∠OAB=180°
∠OAB=40°
→Radius OA is the perpendicular to the tangent at point A
∠OAT=90°
.
→Thus, ∠BAT=∠OAT−∠OAB
Thus, ∠BAT=90°
−40°
∠BAT=50°
.
Similar questions