Calculate the length of tangent from a point 24cm away from the centre of acircle of radius 7cm
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Radius = 7cm
Distance of point from centre = 24cm
Length of tangent = x
Since tangent at any point of a circle is perpendicular to the radius through the point of contact
Therefore, By Pythagoras Theorem
X² + 7² = 24²
X² = 576 - 49
X² = 527
X = √527 cm
Distance of point from centre = 24cm
Length of tangent = x
Since tangent at any point of a circle is perpendicular to the radius through the point of contact
Therefore, By Pythagoras Theorem
X² + 7² = 24²
X² = 576 - 49
X² = 527
X = √527 cm
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