Circles Unit Review
Flashcard
•
Mathematics
•
9th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Which equation correctly reflects the information shown in the diagram?
Back
(14)(15) = (10)(x)
2.
FLASHCARD QUESTION
Front
Circles are...
Back
Sometimes congruent, but always similar
3.
FLASHCARD QUESTION
Front
Alison is jogging on a circular track that has a radius of 140 feet. She runs along the track from point R to point N, a distance of 230 feet. Find to the nearest degree, the measure of minor arc RN.
Back
94
4.
FLASHCARD QUESTION
Front
What does the r in the standard equation stand for?
Back
r is the radius of the circle
5.
FLASHCARD QUESTION
Front
Find the length of the arc. If necessary round to two decimal places.
Back
31.42cm
6.
FLASHCARD QUESTION
Front
What is the formula for the circumference of a circle?
Back
C = 2πr
7.
FLASHCARD QUESTION
Front
What is the area of a circle?
Back
A = πr²
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