Q13 of 49 Page 1

Draw a pair of tangents to a circle of radius 4 cm, which are inclined to each other at an angle of 60°.


Construction:


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


2) Take a point A on the circle. Join OA.


3) Draw a perpendicular to OA at A.


4) Draw a radius OB, making an angle of 120° (180° – 60°) with OA.


5) Draw a perpendicular to OB at point B. Let these perpendiculars intersect at P.


6) PA and PB are the required tangents inclined at angle of 60°


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