The area of a circle is calculated by using the formula A = πr², where r is the ___. A. radius B. diameter C. circumference D. perimeter 相关知识点: 试题来源: 解析 A。本题考查圆的面积公式中半径的作用。在圆的面积公式 A = πr²中,r 表示半径。反馈 收藏 ...
A. diameter B. radius C. circumference D. area 相关知识点: 试题来源: 解析 B。本题考查圆的面积公式中各个字母的含义。'r'在圆的面积公式 A = πr²中代表半径(radius)。A 选项 diameter 是直径;C 选项 circumference 是周长;D 选项 area 是面积。反馈...
The area of a circle with a radius of 5 cm is ___. A. 25π cm² B. 10π cm² C. 5π cm² D. 75π cm² 相关知识点: 试题来源: 解析 A。本题考查圆的面积计算公式,圆的面积 = π×半径²。半径为 5cm,所以面积为 25π cm²。选项 B 计算错误,应为 25π cm...
网络圆面积;圆的面积;圆形面积 网络释义 1. 圆面积 数学词汇英语翻译(A-E) ... area function 面积函数area of a circle圆面积area preserving mapping 保面积映射 ... www.zftrans.com|基于20个网页 2. 圆的面积 数学名次的英文表示_狄少华吧... ... area method 面积法area of a circle圆的面积area...
七、英语数学(翻译)(10分)1.Find the area of a circle with a radius of 8 centimeters.2.A right triangle has one angle that measures90°.七、英语数学(翻译)(10 分) 1.Find the area of a circle with a radius of 8 centimeters. 2.A right triangle has one angle that measures 90°. ...
The formula for finding the area of a circle is A = πd²/4, where d is the ___. A. radius B. diameter C. circumference D. perimeter 相关知识点: 试题来源: 解析 B。本题考查圆的面积公式中直径的作用。在这个公式中,d 表示直径。反馈...
The area of a circle is 49π square meters. What is its radius? A. 7 meters B. 14 meters C. 21 meters D. 28 meters 相关知识点: 试题来源: 解析 A。本题考查圆的面积公式的逆运算。圆的面积公式是 S=πr²(S 是面积,r 是半径),已知面积是 49π 平方米,那么 r²=S÷π=49π÷...
A. 2π square meters B. 6π square meters C. 26π square meters D. 28π square meters 相关知识点: 试题来源: 解析 B。圆的面积 = π×半径²。原半径² = 25,半径 = 5 米。新半径为 6 米,新面积 = 36π 平方米,面积增加了 36π - 25π = 11π 约等于 6π 平方米。反馈...
The area of a circle is:π (Pi) times the Radius squared:A = π r2 or, when you know the Diameter:A = (π/4) × D2 or, when you know the Circumference:A = C2 / 4πExample: What is the area of a circle with radius of 3 m ? Radius = r = 3 Area= π r2 = π× ...
. The radius of the circle is cm, the diameter of the circle is cm, and the circumference of the circle is cm. (π≈3) 相关知识点: 试题来源: 解析 5;10;30 Area=π(r^2)=75 cm2. r=5 cm. d=2r=10 cm. Circumference=πd=10*3=30 cm....