What is the definition of a tangent line to a circle?
Circle Review B

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•
Mathematics
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A tangent line to a circle is a straight line that touches the circle at exactly one point, called the point of tangency.
2.
FLASHCARD QUESTION
Front
What is the formula for the equation of a circle in standard form?
Back
3.
FLASHCARD QUESTION
Front
How do you find the center and radius from the equation of a circle?
Back
4.
FLASHCARD QUESTION
Front
What is the relationship between the radius and the diameter of a circle?
Back
5.
FLASHCARD QUESTION
Front
What is the measure of an angle formed by two tangents drawn from a point outside the circle?
Back
The measure of the angle formed by two tangents drawn from a point outside the circle is equal to half the difference of the measures of the intercepted arcs.
6.
FLASHCARD QUESTION
Front
What is the significance of the point of tangency in circle geometry?
Back
The point of tangency is significant because it is the only point where the tangent line touches the circle, and at this point, the radius is perpendicular to the tangent.
7.
FLASHCARD QUESTION
Front
How do you determine if a line segment is tangent to a circle?
Back
A line segment is tangent to a circle if it meets the circle at exactly one point and is perpendicular to the radius at that point.
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