百度试题 结果1 题目Calculate the area of a circle with a radius of 7 cm.相关知识点: 试题来源: 解析 Area = π(radius)^2 = π(7)^2 ≈ 反馈 收藏
You can also calculate the area of a circle using the circle's radius. The area of a circle is equal to π times the radius squared. Remember that any number squared is equal to that number multiplied by itself. So area, A, can be found using the following equation: A = πr^2 or...
百度试题 结果1 题目A circle has radius 8cm.Calculate the area of the circle. 相关知识点: 试题来源: 解析 π×r²=π×8²=64π=201.06cm² 反馈 收藏
# Import the 'pi' constant from the 'math' module to calculate the area of a circle from math import pi # Prompt the user to input the radius of the circle r = float(input("Input the radius of the circle : ")) # Calculate the area of the circle using the formula: area = π *...
// Rust program to calculate the area of circleusestd::io;fnmain() {letmutradius:f32=0.0;letmutarea:f32=0.0;letmutinput=String::new(); println!("Enter radius: "); io::stdin().read_line(&mutinput).expect("Not a valid string"); radius=input.trim().parse().expect("Not a valid...
Calculate the circumference of a circle with a radius of 5 cm.相关知识点: 试题来源: 解析 10π厘米 或 31.4厘米(取π≈3.14) 圆的周长计算公式为 C = 2πr(其中r为半径)。已知半径r=5cm,代入公式可得:C = 2 ×π× 5 = 10π厘米若采用π的近似值3.14计算:C≈ 2 × 3.14 × 5 = 31.4厘米...
Find the area (in cm2) of a semi-circle of radius 14 cm. View Solution Find the area (in cm2) of a semi-circle of radius 21 cm. View Solution Knowledge Check Calculate the area (in cm2) of a circle of radius 17.5 cm. A1925 B962.5 C809.5 D1619Submit Find the area (in cm...
Calculate the circumference of a circle with a radius of 8 cm.相关知识点: 试题来源: 解析 16π cm 计算圆的周长需要使用公式C=2πr,其中r是半径。题目中给出的半径为8 cm,因此将数值代入公式得到C=2×π×8=16π cm。题目条件完整,无需其他信息,直接应用公式即可得结果。
Area of a Circle Using Diameter | Formula & Examples from Chapter 1 / Lesson 8 149K Learn the formula for finding the area of a circle using the diameter with an applied example. Also, learn how to find the diameter and radius from the area. Related...
2. Surface Area (A):A=4πr23. Volume (V):V=43πr34. Circumference (C):C=2πrWhere:r is the radius of the sphere π (pi) is approximately 3.14159 Calculation StepsDetermine the radius of the sphere Calculate the surface area using A=4πr2 Calculate the volume using V=43πr3 ...