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...
Radius (r): or Diameter (d): or Area (A): Unit of Lenght: Calculate Circumference Result: The circumference of a circle with area 6π is 15.39(*) Formulas: r = 2.45 d = 4.9 C = 15.4 C = 2·π·r C = π·d C = √4·π·A π = 3.1415 A = ...
452.4 square inches (in²) Site map Use the this circle area calculator below to find the area of a circle given its radius, or other parameters. To calculate the area, you just need to enter a positive numeric value in one of the 3 fields of the calculator. You can also see at ...
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 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 ...
Find the area of a circle with a radius of 8 centimeters.用8厘米的半径算出圆周的面积.A right triangle has one angle that measures 90°.一个直角三角形有一个角是90°.right triangle意为直角三角形(专业术... 分析总结。 用8厘米的半径算出圆周的面积结果...
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,...
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...
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...
If the area of a circle is 36π square centimeters, what is the radius of the circle? A. 提回资提回资3 centimeters提回资提回资 B. 四他算原能条定风常更报难料量因她本角目行四他算原能条定风常更报难料量因她本角目行6 centimeters四他算原能条定风常更报难料量因她本角目行四他算原...