What is a secant line?
10.6 Secants, Tangents, and Angle Measures

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Mathematics
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A secant line is a line that intersects a circle at two points.
2.
FLASHCARD QUESTION
Front
What is a tangent line?
Back
A tangent line is a line that touches a circle at exactly one point.
3.
FLASHCARD QUESTION
Front
What is the relationship between a tangent and a radius at the point of tangency?
Back
A tangent line is perpendicular to the radius drawn to the point of tangency.
4.
FLASHCARD QUESTION
Front
How do you find the measure of an angle formed by two secants?
Back
The measure of the angle is equal to half the difference of the measures of the intercepted arcs.
5.
FLASHCARD QUESTION
Front
How do you find the measure of an angle formed by a tangent and a secant?
Back
The measure of the angle is equal to half the difference of the measures of the intercepted arcs.
6.
FLASHCARD QUESTION
Front
What is the formula for the length of a tangent segment from a point outside the circle?
Back
The length of the tangent segment is equal to the square root of the difference between the square of the distance from the point to the center and the square of the radius.
7.
FLASHCARD QUESTION
Front
If two tangents are drawn from a point outside a circle, what can be said about their lengths?
Back
The lengths of the two tangent segments are equal.
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