GEO #6 Circles A Circumference, Area, Equations
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the formula for the area of a circle?
Back
Tags
CCSS.7.G.B.4
2.
FLASHCARD QUESTION
Front
What is the formula for the circumference of a circle?
Back
Tags
CCSS.7.G.B.4
3.
FLASHCARD QUESTION
Front
What is the relationship between the radius and diameter of a circle?
Back
The diameter d is twice the radius r, so d = 2r.
4.
FLASHCARD QUESTION
Front
Define a tangent line in relation to a circle.
Back
A tangent line is a straight line that touches the circle at exactly one point.
5.
FLASHCARD QUESTION
Front
What is a secant line?
Back
A secant line is a line that intersects a circle at two points.
6.
FLASHCARD QUESTION
Front
What is a chord in a circle?
Back
A chord is a line segment whose endpoints lie on the circle.
7.
FLASHCARD QUESTION
Front
What is a central angle?
Back
A central angle is an angle whose vertex is at the center of the circle and whose sides intersect the circle.
Tags
CCSS.HSG.C.A.2
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