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  • Construct a tangent to a circle of radius 4 cm from a point on the concentric circle of radius 6 cm and measure its length. Also verify the measurement by actual calculation.

2. Construct a tangent to a circle of radius 4 cm from a point on the concentric circle of radius 6 cm and measure its length. Also verify the measurement by actual calculation.

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Steps of constructions :- 

(i) Taking point O as a centre draw a circle of radius 4 cm.

(ii) Now taking O as centre draw a concentric circle of radius 6 cm. 

(iii) Taking any point P on the outer circle, join OP.

(iv) Draw a perpendicular bisector of OP.

(v) Name the intersection of bisector and OP as O'.

(vi) Now, draw a circle taking O' as centre and O'P as radius.

(vii) Name the intersection point of two circles as R and Q.

(viii) Join PR and PQ. These are the required tangents.

(ix) Measure the lengths of the tangents.  PR = 4.47 cm and  PQ =  4.47 cm.

                                                                                    

 

Posted by

Devendra Khairwa

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