A point P is at a distance of 29 cm from the centre of a circle of radius 20 centimetre find the length of the tangent drawn from P to the circle
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preyanshpanchal123:
It is not correct
yes
it is not correct
the write answer is 21cm
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Since tangent is always perpendicular to the radius, so a right triangle will be formed...
So, (29)^2 = (20)^2 + x^2
841 = 400 + x ^2
x^2 = 441
x = 21 cm
Hence, Length of the tangent is 21 cm.
So, (29)^2 = (20)^2 + x^2
841 = 400 + x ^2
x^2 = 441
x = 21 cm
Hence, Length of the tangent is 21 cm.
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