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Old 04-14-2012   #1
WWE
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Default Central Angles

On my homework I have a question that says, "The points N, R, and P are on the circle below. Point M is in the center of the circle. Connect three points to form a central angle." Below the question it shows a big circle with points R, N, P, and M.
This is on a state test from 2009. My class did not learn what central angles are. Can someone please tell me what a central angle is or what it looks like?

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Old 04-14-2012   #2
Mr. Hui


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A central angle is an angle which vertex is the center of a circle, and whose sides pass through a pair of points on the circle.

In the following figure:

angle NMP
angle NMR
angle PMR

are all central angles
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Old 04-16-2012   #3
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Default Rmp?

Quote:
Originally Posted by Mr. Hui View Post
A central angle is an angle which vertex is the center of a circle, and whose sides pass through a pair of points on the circle.

In the following figure:

angle NMP
angle NMR
angle PMR

are all central angles
Please go to question 29 in the attachment below. In this figure would angle RMP be a central angle?
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File Type: pdf nys math test grade 6 b2.pdf (116.8 KB, 16 views)
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Old 04-16-2012   #4
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Yes angle RMP is the same central angle as angle PMR.
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