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Question

Construct two tangents to a circle of radius 4 cm from a point 5 cm. away from the centre.

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Solution

Length of the radius = 4 cm

The steps below need to be followed to construct the circle and the tangents.

1. Draw a circle of radius 4 cm with centre O.

2. Mark a point P at a distance of 5 cm from the centre of the circle.

3. Join OP.

4. Draw the perpendicular bisector of OP such that it divides OP into two equal parts at M.

5. With M as the centre and OM as the radius, draw a circle that cuts the previously drawn circle at points X and Y.

6. Join PX and PY.

Thus, PX and PY are tangents to the circle of radius 4 cm from a point 5 cm away from the centre O.


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