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Practical Geometry

I. Construction of tangent using the centre of the circle:

Example :

Draw a tangent to a circle of radius 4.8 cm by using the centre of the circle.


Step 1: Draw a circle with centre O having radius 4.8 cm. 

Step 2: Take a point Q on the circle and draw a ray OQ.

Step 3: Draw a line l perpendicular to OQ at point Q.

Line l is the required tangent.


II. Construction of tangent without …

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