chord, secant, tangent lengths
Flashcard
•
Mathematics
•
10th Grade
•
Hard
Standards-aligned
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1.
FLASHCARD QUESTION
Front
What is a chord in a circle?
Back
A chord is a line segment whose endpoints lie on the circle.
2.
FLASHCARD QUESTION
Front
Define a secant line.
Back
A secant line is a line that intersects a circle at two points.
3.
FLASHCARD QUESTION
Front
What is a tangent line?
Back
A tangent line is a line that touches a circle at exactly one point.
4.
FLASHCARD QUESTION
Front
How do you find the length of a chord given the radius and the distance from the center to the chord?
Back
Use the formula: length = 2 * sqrt(r^2 - d^2), where r is the radius and d is the distance from the center to the chord.
Tags
CCSS.HSG.C.A.2
5.
FLASHCARD QUESTION
Front
What is the relationship between the lengths of secants that intersect outside a circle?
Back
If two secants intersect outside a circle, the product of the lengths of one secant segment and its external segment equals the product of the lengths of the other secant segment and its external segment.
Tags
CCSS.HSG.C.A.2
6.
FLASHCARD QUESTION
Front
State the tangent-secant theorem.
Back
The square of the length of the tangent segment is equal to the product of the lengths of the secant segment and its external segment.
Tags
CCSS.HSG.C.A.2
7.
FLASHCARD QUESTION
Front
If a secant intersects a circle, how do you find the length of the segment inside the circle?
Back
Use the formula: length = r^2 - d^2, where r is the radius and d is the distance from the center to the secant.
Tags
CCSS.HSG.C.A.2
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