Asked by | 30th Jan, 2009, 10:41: PM
1. Draw a circle of radius 3cm.
2. Take a chord PQ on it.
3. Take any point R on the circle.
4. Join PR and QR.
5. Now take and arc = PRP taking as a centre.
6. Extend PT.
PT is the tangent to the circle.
Or else another alternate method could be:
1. First locate the centre of the circle by taking two non parallel chords and finding its point of intersection.
2. Join PO and bisect it. Let M be the mid point of PO.
3. Taking M as a centre and MO radius draw a circle. Let it intersect the circle at Q & R.
4. Join PQ & PR
PQ & PR are the required two tangents
Answered by | 31st Jan, 2009, 02:42: PM
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