Find the length of a tangent from a point 25cm away from the centre of
circle of radius 7cm.
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Step-by-step explanation:
Let P be the given point, O be the centre of the circle and PT be the length of tangent from P. Then, OP = 25 cm and OT = 7 cm. Since tangent to a circle is always perpendicular to the radius through the point of contact.
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