draw a tangent to a circle of 4cm radius from any point of a concentric circle of 6cm radius
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Steps of construction 1. Draw a line segment of length OA = 4 cm. With O as centre and OA as radius, draw a circle.
2. With O as centre draw a concentric circle of radius 6 cm(OB).
3. Let C be any point on the circle of radius 6 cm, join OC.
4. Bisect OC such that M is the mid point of OC.
5. With M as centre and OM as radius, draw a circle. Let it intersect the given circle of radius 4 cm at the points P and Q.
6. Join CP and CQ. Thus CP and CQ are the required two tangents.
2. With O as centre draw a concentric circle of radius 6 cm(OB).
3. Let C be any point on the circle of radius 6 cm, join OC.
4. Bisect OC such that M is the mid point of OC.
5. With M as centre and OM as radius, draw a circle. Let it intersect the given circle of radius 4 cm at the points P and Q.
6. Join CP and CQ. Thus CP and CQ are the required two tangents.
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