The formula for the circumference of a circle is C = 2πr, where r is the ___. A. radius B. diameter C. area D. perimeter 相关知识点: 试题来源: 解析 A。本题考查圆的周长公式中半径的作用。在圆的周长公式 C = 2πr 中,r 表示半径。反馈 收藏 ...
The formula for the circumference of a circle is ___. A. 2 ×π× radius B. π× radius × radius C. 2 ×π× diameter D. π× diameter × diameter 相关知识点: 试题来源: 解析 A。本题考查圆的周长公式的英语表达。选项 B 是圆的面积公式;选项 C 中 2 应乘以半径,不是直径;选项...
Device and method for deriving the formula for the circumference of a circleVORWALD ALAN G.VAGTS CHRISTOPHER R.SAVIN CORNELIUS
If a circle has radiusr, where the radius of a circle is 1/2 the diameter of the circle, then the formula for the circumference of a circle is as... Learn more about this topic: Circumference | Definition, Equation & Examples
The distance of the locus from the center is known as the radius, and the circumference of the circle is the length of the round locus. The formula for the circumference of a circle is as follows: $$\text{circumference...
The formula for the circumference of a circle is _. A. π×radius² B. 2×π×radius C. 4×π×radius D. π×diameter 相关知识点: 试题来源: 解析 B。本题考查圆的周长公式。选项 B 是圆的周长公式,2 倍圆周率乘半径。选项 A 是圆的面积公式。选项 C 错误。选项 D 圆周率乘直径也等于圆...
结果1 题目 The formula for the circumference of a circle is C = 2πr. If the radius of a circle is 5 cm, what is the circumference? A. 10π cm B. 15π cm C. 20π cm D. 25π cm 相关知识点: 试题来源: 解析 C。周长 C = 2π×5 = 10π cm。 反馈 收藏 ...
Seeing how a cylinder is similar to a rectangular solid may make it easier to understand the formula for the volume of a cylinder.To understand the formula for the surface area of a cylinder, think of a can of vegetables. It has three surfaces: the top, the bottom, and the piece...
What is the formula for circumference of a circle given the diameter? a. {eq}C = \pi \; r {/eq} b. {eq}C =2 \pi \; r {/eq} c. {eq}C = \pi \; d {/eq} d. {eq}C = 2\pi \; d {/eq} The Circumference of a Circle...
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...