Draw a circle of radius 6 cm. From a point 10 cm away from its centre, construct the pair of tangents to the circle and measure their lengths. Give the justification of the construction.
A pair of tangents to the given circle can be constructed as follows.
Taking any point O of the given plane as centre, draw a circle of 6 cm radius. Locate a point P, 10 cm away from O. Join OP.
Bisect OP. Let M be the mid-point of PO.
Taking M as centre and …
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