Circles Review
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the definition of a circle?
Back
A circle is a set of points in a plane that are equidistant from a fixed point called the center.
2.
FLASHCARD QUESTION
Front
What is the formula for the circumference of a circle?
Back
The circumference C of a circle is given by the formula C = 2πr, where r is the radius.
Tags
CCSS.7.G.B.4
3.
FLASHCARD QUESTION
Front
What is the relationship between the diameter and the radius of a circle?
Back
The diameter d of a circle is twice the radius r, so d = 2r.
4.
FLASHCARD QUESTION
Front
What is a chord in a circle?
Back
A chord is a line segment whose endpoints lie on the circle.
5.
FLASHCARD QUESTION
Front
What is a tangent to a circle?
Back
A tangent is a line that touches the circle at exactly one point.
6.
FLASHCARD QUESTION
Front
What is the measure of a central angle in a circle?
Back
A central angle is the angle whose vertex is at the center of the circle and whose sides are radii.
Tags
CCSS.HSG.C.A.2
7.
FLASHCARD QUESTION
Front
What is the measure of an inscribed angle in a circle?
Back
An inscribed angle is half the measure of the intercepted arc.
Tags
CCSS.HSG.C.A.2
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