Circles (12/1/23)
Flashcard
•
Mathematics
•
8th - 12th Grade
•
Practice Problem
•
Hard
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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.
3.
FLASHCARD QUESTION
Front
What is the formula for the area of a circle?
Back
The area (A) of a circle is given by the formula A = πr², where r is the radius.
4.
FLASHCARD QUESTION
Front
What is a secant line in relation to a circle?
Back
A secant line is a line that intersects a circle at two points.
5.
FLASHCARD QUESTION
Front
What is a tangent line in relation to a circle?
Back
A tangent line is a line that touches a circle at exactly one point.
6.
FLASHCARD QUESTION
Front
What is the relationship between the radius and diameter of a circle?
Back
The diameter (d) of a circle is twice the length of the radius (r), expressed as d = 2r.
7.
FLASHCARD QUESTION
Front
What is the center of a circle?
Back
The center of a circle is the fixed point from which all points on the circle are equidistant.
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