Circles Review
Flashcard
•
Mathematics
•
10th - 11th Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a central angle in a circle?
Back
A central angle is an angle whose vertex is at the center of the circle and whose sides (rays) intersect the circle at two points.
2.
FLASHCARD QUESTION
Front
How do you calculate the length of an arc in a circle?
Back
The length of an arc can be calculated using the formula: Arc Length = (θ/360) * 2πr, where θ is the central angle in degrees and r is the radius of the circle.
Tags
CCSS.HSG.C.B.5
3.
FLASHCARD QUESTION
Front
What is the relationship between a central angle and its intercepted arc?
Back
The measure of a central angle is equal to the measure of its intercepted arc.
Tags
CCSS.HSG.C.B.5
4.
FLASHCARD QUESTION
Front
If the radius of a circle is 24 feet and the central angle is 165 degrees, what is the length of the arc?
Back
Using the formula: Arc Length = (165/360) * 2π(24) ≈ 69 feet.
Tags
CCSS.HSG.C.B.5
5.
FLASHCARD QUESTION
Front
What is the formula for the circumference of a circle?
Back
The circumference of a circle is given by the formula: C = 2πr, where r is the radius.
Tags
CCSS.7.G.B.4
6.
FLASHCARD QUESTION
Front
What is the measure of a full circle in degrees?
Back
A full circle measures 360 degrees.
Tags
CCSS.4.MD.C.5B
CCSS.HSG.CO.A.1
7.
FLASHCARD QUESTION
Front
How do you find the area of a sector of a circle?
Back
The area of a sector can be calculated using the formula: Area = (θ/360) * πr², where θ is the central angle in degrees and r is the radius.
Tags
CCSS.HSG.C.B.5
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