Question 28 (OR 1st question) Draw a circle of radius 4 cm. From the point 7 cm away from its centre, construct the pair of tangents to the circle.
Steps of construction
Draw a circle of radius 4 cm
Draw point P, 7 cm away from center
1 mark
for drawing circle
3. Join PO.
Make perpendicular bisector of PO
Let M be the midpoint of PO.
4. Taking M as centre and MO as radius,
draw a circle.
5. Let it intersect the given circle at points Q and R.
6. Join PQ and PR.
∴ PQ and PR are the required two tangents.

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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