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Why does the angle formed by the radius of a circle and a tangent of a circle has a measure of 90 degrees?
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Why does the angle formed by the radius of a circle and a tangent of a circle has a measure of 90 degrees?

User Steve Pettifer
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1 Answer

1 vote
Theorem:
A tangent to a circle forms a right angle with the circle's radius, at the point of contact of the tangent.
User Dportology
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