Two tangents making an angle of 120 with each other, are drawn to a circle of radius 6cm, then the length of each tangent is equal to_____?
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use trigonometry
draw line from centre to external point
therefore tan 60 =x\6
x=6\root3
x=2root3
draw line from centre to external point
therefore tan 60 =x\6
x=6\root3
x=2root3
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