The circumference of a circle = diameter - π 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述。选项 A 是“圆的周长 = 直径 ×π”的正确英语表达;选项 B 中“radius(半径)”错误;选项 C 中“+ π”错误;选项 D 中“- π”错误。反馈 收藏 ...
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
Circumference length formula in terms of diameter C = π·d Circumference length formula in terms of area C = √4·π·A Questions this calculator can answer: How to find the perimeter of a circle with a radius of 7.25 mm? A circle has a diameter of 14.5 mm. What is ...
Find the circumference of a circle of radius 14 cm. View Solution What is the circumference of a circle of diameter 10 cm. (Takeπ=3.14) View Solution Find the circumference of a circle with radius3.5cm. View Solution Find the area of a circle of diameter 7 cm. ...
Diameter (d): or Area (A): Unit of Lenght: Calculate Circumference Result: The circumference of a circle with diameter 14 is 43.98(*) Formulas: r = 7 d = 14 C = 44 C = 2·π·r C = π·d C = √4·π·A π = 3.1415 A = area of the circle C = ...
The ratio of the circumference of a circle to its diameter is a constant called ___. A. pi B. e C. phi D. gamma 相关知识点: 试题来源: 解析 A。圆的周长与直径的比值是一个常数叫圆周率“pi”。选项 B“e”是自然对数的底数;选项 C“phi”是黄金比例;选项 D“gamma”是希腊字母伽马。反馈...
(1) You measure the diameter of a circle to be 8.5 cm. Find the circumference. To solve this, simply enter the diameter in the equation. Remember to report your answer with the proper units. C = πd C = 3.14 * (8.5 cm) C = 26.69 cm, which you should round up to 26.7 cm ...
Thus, we can define three different formulas to find the perimeter of circle (i.e. circumference of a circle). Formula 1: When the radius of a circle is known. Circumference of a circle = 2πr Formula 2: When the diameter of a circle is known. Circumference = πd Formula 3: When ...
Thus, we can define three different formulas to find the perimeter of circle (i.e. circumference of a circle). Formula 1: When the radius of a circle is known. Circumference of a circle = 2πr Formula 2: When the diameter of a circle is known. Circumference = πd Formula 3: When ...
pi Symbol , the ratio of the circumference of a circle to its diameter. The value of pi is 3. 141 592 6,correct to seven decimal places. Common approximations to pi are 22/7 and 3. 14. 相关知识点: 试题来源: 解析 符号π 圆的周长与其直径之比,π精确到七位 小数的值是3.1415926.m的...