Question

PA and PB are the tangents to a circle which circumscribes an epuilateral triandleABQ . if angle PAB 60 degree .prove that triangle ABP is an equilateral triangle

Answer 1

As tangent- secant theorem tangent is perpendicular to secant and angle PBA= angle PAB due to tangent-secant theorem. Therefore angle APB should also be equal to 60°