Draw a circle of radius 3 cm. Take a point A on its extended diameter at a distance of 7 cm from its centre. Draw two tangents to the circle from A.

Question

Philoid · Accepted Answer

Steps of Construction:

1. Draw a circle with centre f and radius 3cm

2. Extend diameter of circle to a distance of 7cm from centre and say A

3. Draw a perpendicular bisector of Af. Let O be the mid-point of Af.

4. With centre O, and radius OA, draw a circle.

5. Let this circle intersects the given circle at the point P and Q.

6. Join PA and QA.

PA and QA are the required tangents.