CBSE Class 10 - Tangents to A Circle Videos

• in the given figure a triangle abc is drawn to circumscribe a circle of radius 3 cm such that the segment bd and dc are respectively of length 6 and 9 cm if the area of traingle abc is 54cm2 then find side ab and ac
  
• prime factorisation
• prove that the tangent at any point of a circle is perpendicular to the radius through the point of contact
• radious of circle is
• A tangent PQ at a point P on a circle of radius 5cm meets a line through the centre O at a point such that OQ=13cm. Find the length of PQ.
• Prove that the lengths of tangents drawn from an external point to a circle are equal. *
• The length of a tangent from a point A at distance 5 cm from the centre of the circle is 4 cm. The radius of the circle is
• From any point on the common chord of two intersecting circles, tangents be drawn to thecircles, prove that they are equal. 
• please answer these questions
  
• A tangent PA is drawn fron an external point P to a circle of radius 3 cm such that the distance of the point P from O is 6cm.Find yhe value of. 

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