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the circumference of circle O
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06 Sep 2022, 16:10
06 Sep 2022, 16:10
Expert Reply
00:00
Question Stats:
100% (01:02) correct
0% (00:00) wrong based on 10 sessions
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O is the center of the circle.
The length of arc ABC is 2 cm.
The measure of ∠X is 45°.
Quantity A |
Quantity B |
20 cm |
the circumference of circle O |
A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
Part of the project: GRE QCQ & PS 3 Questions Every One DAILY Challenge - (2022) - Gain 20 Kudos & Get FREE Access to GRE Prep Club TESTS
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GRE Math Essentials (2022)
GRE Geometry Formulas
GRE - Math Book
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GRE Math Essentials (2022)
GRE Geometry Formulas
GRE - Math Book
Re: the circumference of circle O
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09 Oct 2022, 13:21
09 Oct 2022, 13:21
Expert Reply
OE
Quote:
The length of arc ABC can be determined using the formula length = x/360(C), where x is the measure of the angle whose rays intersect the arc and C is the circumference of the circle. In this case, the formula is set up as follows:
length = x/360(C)
length = 45/360 (20)
length = 1/8 (20)
length = 2.5 cm
2.5 cm > 2 cm, so the answer is a.
length = x/360(C)
length = 45/360 (20)
length = 1/8 (20)
length = 2.5 cm
2.5 cm > 2 cm, so the answer is a.
gmatclubot
Re: the circumference of circle O [#permalink]
09 Oct 2022, 13:21
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