A. radius B. diameter C. area D. perimeter 相关知识点: 试题来源: 解析 A。圆的周长公式 C = 2πr 中,r 是半径。B 选项“diameter”是直径;C 选项“area”是面积;D 选项“perimeter”是周长,和题目中的 C 重复。反馈 收藏
百度试题 结果1 题目The circumference of a circle with radius π is ( ). A. πB. 2πC. π2D. 2π2相关知识点: 试题来源: 解析 D 反馈 收藏
What is the circumference of a circle? A. The distance across the circle. B. The distance from the center to any point on the circle. C. The distance around the circle. D. The number of points on the circle. 相关知识点: 试题来源: 解析 C。原因:文中提到“The circumference of a ...
The formula for calculating the circumference of a circle is ___. A. C = πr B. C = 2r C. C = 2πr D. C = r² 相关知识点: 试题来源: 解析 C。解析:文章中提到 The circumference of a circle is calculated by using the formula C = 2πr.反馈 收藏 ...
A.What differences are there, if any, in the ways that the two therapies are administered B.Is there any significant difference between the costs associated with the two therapies C.What percentage of people with ulcers of this type who were treated with the most widely used therapy for six...
A 结果一 题目 The circumference formula of a circle is C=2πR, which of the statements below is false? ( ).A.π is a variable.B.R is a variable.C.R is an independent variable.D.C is a dependent variable. 答案 AR is an independent variable and C ia the dependent variable. 2π...
百度试题 结果1 题目1. Calculate the circumference of each circle below, giving your answers to 2 d.p.a)b)c)d)-4 cm3.5 cm9.2 cm0.5 m 相关知识点: 试题来源: 解析 1. a) 25.13cmb) 21.99cmc) 28.90cmd) 1.57m 反馈 收藏
Unit of Lenght: Calculate Circumference Result: The circumference of a circle with area 20π is 28.1(*) Formulas: r = 4.47 d = 8.94 C = 28.1 C = 2·π·r C = π·d C = √4·π·A π = 3.1415 A = area of the circle C = circumference or perimeter r =...
Get a better understanding of the circumference of a circle and how it is calculated. Explore more with solved examples.
We have a well-known formula for the circumference, or distance around, a circle when given its radius, r, This formula states that if a circle has radius r, then its circumference, C, is {eq}C=2\pi r {/eq}. If we solve this formula for...