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...
The circle has a ___ of 5 cm. A. diameter B. radius C. circumference D. area 相关知识点: 试题来源: 解析 B。本题考查圆的相关英语表述。选项 A“diameter”是直径;选项 C“circumference”是周长;选项 D“area”是面积。“radius”是半径的意思,这个圆的半径是 5 厘米。反馈...
题目The radius of a circle is 5 cm. What is the area of the circle? A. 78.5 cm² B. 31.4 cm² C. 15.7 cm² D. 19.625 cm² 相关知识点: 试题来源: 解析 A。本题考查圆的面积计算,圆的面积公式为πr²,半径 r = 5cm,面积 = 3.14×5×5 = 78.5cm²。B 选项 31.4 是圆...
The radius of a circle is 5 cm. What is the area of the circle? A. 25π cm² B. 10π cm² C. 15π cm² D. 7.5π cm² 相关知识点: 试题来源: 解析 A。圆形面积公式为π×半径²,半径为 5cm,面积为 25π cm²。
The area of a circle with a radius of 3 cm is equal to the area of a square. What is the side length of the square? A. 3 cm B. 3π cm C. 3√π cm D. 9 cm 相关知识点: 试题来源: 解析 C。解析:圆的面积为π×3×3 = 9π平方厘米。设正方形边长为 a,则 a×a = 9π,...
A circle has a radius of 5 centimeters. What's the area of the circle? A. 15.7 square centimeters B. 31.4 square centimeters C. 78.5 square centimeters D. 157 square centimeters 相关知识点: 试题来源: 解析 C。本题考查圆的面积计算和英语中数字及几何词汇的运用。圆的面积公式是πr²,3.14...
The area of a circle with a radius of 3 cm is ___ square centimeters. A. 3π B. 6π C. 9π D. 12π 相关知识点: 试题来源: 解析 C。本题考查圆的面积公式。半径为 3 cm 的圆的面积是 A = πr² = π×3² = 9π 平方厘米。反馈 收藏 ...
Radius: or Diameter or Circumference: Unit: Calculate Area Result: The area of a circle with radius 65 is 13270 Formulae: r = 65 d = 130 C = 408 A = πr2 = π(d2)2 A = C24π π = 3.1415 A = area C = circumference or perimeter r = radius, d = diameter Solut...
Find the area of a circle with a radius of 7 units.搜索 题目 Find the area of a circle with a radius of 7 units. 答案 解析 null 本题来源 题目:Find the area of a circle with a radius of 7 units. 来源: 越分练习题 收藏 反馈 分享...
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°. ...