Prove that the parallelogram circumscrib...

Prove that the parallelogram circumscribed about a circle is only a rhombus.

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CALCUTTA BOOK HOUSE-THEOREMS RELATED TO TANGENT IN A CIRCLE -EXERCISE 4.1

PR and PS are two tangents drawn from a extental point P of the Circle...
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PQ is a diameter of the circle with centre at O. The tengent drawn at ...
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PQ is a chord of the circle with centre at C and of radius 4 cm.The ta...
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The tangent drawn from an extenral point A of the circle with centre C...
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If two circles touch internally,then the distance between the centres ...
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The tangent to a circle at any point on it is perpendicular to the rad...
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Only "" tangent can be drawn at any point on the circumference of a ci...
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The perpendicular drawn on radius at the end point of radius of a circ...
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The radii of two circles are 10 cm and 5 cm and the distance between t...
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PQ is a diameter of the circle with centre at O. The tangent drawn at ...
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The lengths of two radii of two circles are repectively 3 cm and 2 cm....
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Prove that the centres of three equal circles touchinhg each other are...
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AB and AC are two tangents to the circle with centre at O. Prove that ...
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Two equal circles touches each other externally at a point C and a lin...
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The quadrilateral ABCD is circumsribed about a circle. Prove that AB+ ...
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Two circles touch each other externally at a point A and a stright lin...
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Prove that the parallelogram circumscribed about a circle is only a rh...
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Draw a circle with radius 3.4cm and draw a tangent at one side of the ...
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Draw a circle of radius 4cm. From a point 8cm away its centre, constru...
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Draw a circle of radius 5cm. From a point 11cm away its centre, constr...
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