What is the distance between two parallel tangents of a circle of radius 7 cm?
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What is the distance between two parallel tangents of a circle of radius 7 cm?
It is known, any tangent to the circle is perpendicular to the radius passing through the point.
Two radii of a circle are parallel to one another if they are part of the same diameter, that is, if they put together form a diameter.
Therefore, two tangents to any given circle are parallel to one another only if they touch the circle at diametrically opposite points.
Thus, in this case, distance between two parallel tangents to the circle must be (2 * 7) cm = 14 cm.
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