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touches the sides BC, CA, AB al une pum ...

touches the sides BC, CA, AB al une pum OR from an external point P. two tangents PA and PB are drawn to a cirere With centre O. At one Point on the circle tangent is drawn which intersects PA and PB at C and D respectively. If PA = 10 cm, then find the perimeter of the triangle PCD. 39. A man standing on the deck of a ship, which is 10 m above water level, observes the angle of elevation of the top of a hill as 60° and angle of depression of the base of the hill as 30°. Fird the distance of the hill from the ship and the height of the hill. in Therithmetic mean of the given frequency distribution is 472 and the total number of employers

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From an external point P, two tangents, PA and PB are drawn to a circle with centre 0. At one point E on the circle tangent is drawn which intersects PA and PB at C and D, respectively. If PA=10 cm, find the perimeter of the triangle PCD.

From an external point P, two tangents, PA and PB are drawn to a circle with centre 0. At one point E on the circle tangent is drawn which intersects PA and PB at C and D, respectively. If PA=10 cm, find the perimeter of the triangle PCD.

From an external point P, tangents PA and PB are drawn to a circle. CE is a tangent to the circle at D which intersect PA and PB at point E and C respectvely. If AP=15 cm, find the permeter of the trianglePEC.

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From an external point P, tangent PA=PB are drawn to a circle with centre O. If anglePAB=50^@, then find angleAOB .

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From a point P, two tangents PA and PB are drawn to a circle with centre O. If OP= diameter of the circle,show that APB is equilateral.