WU: Angles of a circle

Flashcard
•
Mathematics
•
10th - 12th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the definition of a chord in a circle?
Back
A chord is a line segment with both endpoints on the circle.
2.
FLASHCARD QUESTION
Front
What is the relationship between the angles formed by two intersecting chords in a circle?
Back
The measure of the angle formed is equal to half the sum of the measures of the arcs intercepted by the angle and its vertical angle.
Tags
CCSS.HSG.C.A.2
3.
FLASHCARD QUESTION
Front
How do you calculate the measure of an angle formed by two chords that intersect inside a circle?
Back
The measure of the angle is equal to half the sum of the measures of the arcs intercepted by the angle.
Tags
CCSS.HSG.C.A.2
4.
FLASHCARD QUESTION
Front
What is the formula to find the measure of an angle formed by a tangent and a chord?
Back
The measure of the angle is equal to half the measure of the intercepted arc.
Tags
CCSS.HSG.C.A.2
5.
FLASHCARD QUESTION
Front
What is the measure of an angle formed by two secants that intersect outside a circle?
Back
The measure of the angle is equal to half the difference of the measures of the intercepted arcs.
Tags
CCSS.HSG.C.A.2
6.
FLASHCARD QUESTION
Front
If two chords intersect at point P inside a circle, and the measures of the arcs are 140° and 66°, how do you find the angle at P?
Back
Use the formula: m∠P = 1/2(140 + 66).
Tags
CCSS.HSG.C.A.2
7.
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 is equal to half the difference of the measures of the intercepted arcs.
Tags
CCSS.HSG.C.A.2
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