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Course: 4th grade>Unit 12

Lesson 1: Understanding angle measurement

Angles in circles word problem

Lindsay solves a word problems about angles as part of a circle.

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• Why is she saying so many nonsense
• I have a question. The dial above doesn't even go around all the way with all the settings.It just ends at high. So how can Lindsay say that the middle is 180 degrees? I mean, I know a straight angle is 180 degrees but if it doesn't go all the way. . . isn't it like those comparing number lines where if the number lines itself aren't the same length as the other number line it would be hard to judge or maybe even not-able-to-be-solved? Thanks. Please answer.
• So, here Lindsay means that the middle (180 degrees) is the middle of the circle, not the middle of how far the dial can turn.
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• isn't a 180 dergree angle just a line, not 2 rays?
(1 vote)
• It is both a line and two rays. At
• hi I am confused about how did you do the angles
• what about if you don't have picture?
• she is giving an example with a picture in it
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• 3/5 プラス 18/4 は何ですか
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• what dose that mean
• What is angles in circle?
• In a circle, an angle is formed by two intersecting lines which start from the center of the circle and reach up to the circumference. The measure of an angle in a circle is defined as the length of the arc it cuts off, divided by the radius of the circle. This measure is usually expressed in degrees or radians. The central angle of a circle is an angle whose vertex is at the center of the circle, and its adjacent sides are radii of the circle. I hope this helps!
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• how do you get 360 dgeze
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• So, to make a 360-degree angle with a protractor, draw a line, ray, or line segment. Place the center point of that protractor at any endpoint of the line. Trace the circle given at the center around the endpoint. That will be the required angle of 360 degrees.