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How can you prove the converse of the ab...

How can you prove the converse of the above theorem.
"If a line in the plane of a circle is perpendicular to the radius at its end point on the circle , then the line is tangent to the circle " .

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VGS PUBLICATION-BRILLIANT-TANGENTS AND SECANTS TO A CIRCLE-EXERCISE
  1. What is the longest chord ?

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  2. How many tangnets can you draw to a circle , which are parallel to eac...

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  3. How can you prove the converse of the above theorem. "If a line in ...

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  4. We can draw ………… tangents to a given circle .

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  5. A tangent to a circle intersects it in ………. Point (s) .

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  6. A line intersecting a circle in two points is called a ………..

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  7. Number of tangents drawn to a circle is ………..

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  8. The common point to a tangent and a circle is called …..

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  9. We can draw ………… tangents to a given circle .

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  10. Fill in the blanks. A circle can have parallel……………tangents at the mos...

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  11. Fill in the blanks A tangent PQ at a point P of a circle of radius 5...

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  12. Draw a circle and two lines parallel to a give such that one is a tang...

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  13. Calculate the length of tangent from a point 15 cm away from the centr...

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  14. Prove that the tangnets to a circle at the end points of a diameter ar...

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  15. Use Pythagoras theorem and write proof of above theorem " the lengths ...

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  16. Draw a pair of radii OA and OB such that angleBOA=120^(@) . Draw the ...

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  17. Draw a pair of tangents to circle of radius 5 cm which are inclined to...

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  18. Two concentric circles of radii 5 cm and 3 cm are draw . Find the leng...

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  19. Parallelogram circumscribing a circle is a ………………..

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  20. A triangle ABC is drawn to circumscribe a circle of radius 3 cm. such ...

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