The measure of a full circle is ___. A. 90 degrees B. 180 degrees C. 360 degrees D. 45 degrees 相关知识点: 试题来源: 解析 C。本题考查圆的角度。一个完整的圆是 360 度,选项 C 正确;选项 A45 度和选项 D90 度都不是圆的角度;选项 B180 度是平角。反馈...
∙12yago Best Answer 90 Wiki User ∙12yago This answer is: Add your answer: Earn +20pts Q:How many degrees are there in a one quarter turn? Write your answer... Submit Still have questions? Find more answersAsk your question
In a circle, if the measure of a central angle is 120 degrees, then the ratio of the length of the corresponding arc to the circumference is: A. 1/3 B. 1/2 C. 2/3 D. 1/4 相关知识点: 试题来源: 解析 A。因为圆心角为 120 度,圆的圆心角为 360 度,弧长与圆心角成正比,所以 ...
最流行的猜测是公元前3000年，生活在现在的伊拉克南部的古苏美尔人计算太阳环绕地球的轨迹用了360天完成，所以他们把圆分成360个等份。而这与2000年前生活的同一地区的古巴比伦人不谋而合，他们采用60进制的数学系统。他们应用该系统将角分成60度，6个这样的角组合在一起变成360度，这与古苏美尔人的...
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There are many parts of a circle that define a circle such as a radius, a diameter, a chord, and so on. Learn more about the parts of a circle, its formulas, and solve a few examples.
In school we learn there are 360 degrees in a circle, but where did the 360 come from? When it is pointed out that the Babylonians counted to base-60, rather than base-10 as we do, people often ask if there is a connection. The short answer is no. The longer answer involves ...
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0 degrees.B. 15 degrees.C. 5 degrees.答案1. Boy: How old are you, Mary?Mary: Yesterday I was ten years old. But today ismy birthday. I'm eleven now.Boy: Oh, happy birthday to you!Q: How old is Mary?2. Mum: Oh, it's raining.Sam: Mum, I need...
the color red corresponds to an angle of 0 degrees, yellow to 60 degrees, and so on. The particular variation of HSV used for the sample project scales the degrees on the circle so that values for the Hue portion of the color range from 0 to 255—the scaling is done internally, in ...