find perimeter of trapezoid

PackageMianxiangduixiang;//trapezoidal Public classLadder {DoubleShangdi; DoubleXiadi; DoubleGao; DoubleMianji; DoubleZhouchang; Ladder (DoubleShangdi,DoubleXiadi,DoubleGao) {//using parameters to initialize properties//Resolve Parameter name duplicate this represents the current class This. Shangdi =Shangdi; This. Xiadi =Xiadi; This. Gao =Gao; } //method naming: verb + name; The first letter of a verb is lowercase//If you need a return value, simply precede the method with the type

Reference: http://iask.sina.com.cn/ B /9499520.html What is the formula for calculating the perimeter and area of a triangle, rectangle, square, trapezoid, or circle? Perimeter: girth area: Area 1. Triangle (General triangle, Helen formula) Triangle Perimeter L = A + B + C (a, B, c is the length of the three sides

Use polymorphism to find the area and perimeter of the rectangle and the area of the circle my perimeterShape shape = new Circle (5); New Square (5,6);Double area = shape. Getarea ();Double perimeter = shape. Getperimeter ();Console.WriteLine ("The area of this shape is {0}, the perimeter is {1}", Area,

1104:0 starting point algorithm 11--trapezoid area time limit:1 Sec Memory limit:64 MB 64bit IO Format:%lldsubmitted:6473 accepted:1875[Submit] [Status] [Web Board] DescriptionWater problemInputEnter 3 floating-point numbers, representing the top, bottom, and height, separated by commas (the title contains multiple sets of data)OutputOutput trapezoid area, reserved 2 decimal placesSample Input2,4,5

Analysis:In high school, we have learned that we can use rectangular method or rectangular method to find the definite integral. The idea is to divide the integral interval into n equal parts, then approximate the n equal equal to the rectangle (or trapezoid), and then sum the area of all the rectangles (or trapezoidal). A simple example:The definite integral of the function x^2 Rectangular method:

//using the idea of object-oriented polymorphism to find the area and perimeter of circle and rectangle respectivelyStatic voidMain (string[] args) { Sharp Sharp=NewCircle (5); DoubleArea=Sharp . Getarea (); DoublePerimeter=Sharp . Getperimeter (); Console.WriteLine ("area is {0}, perimeter is {1}", Area,

DescriptionThere is a piece of paper in front of Tom, it length and width are integers. Tom knows the area of this paper, he wants to know the minimum perimeter of this paper.InputIn the first line, there are an integer T indicates the number of test cases. In the next T-lines, there is only one of the integer-n-Every line, indicates the area of paper.$T \leq 10,n\leq {10}^{9}$OutputFor each case, output a integer, indicates the answer.Sample Input3 2

PackageA;Importjava.nio.charset.MalformedInputException; Public classsanjiaoxing {Private Doublea,b,c;//Public sanjiaoxing (double A, double b, double c) {//super ();//THIS.A = A;//this.b = b;//this.c = c;// } Public voidZhouchang (DoubleADoubleBDoublec) {//Math.Abs (A-B) take absolute value if(a>0b>0c>0 (A+b) >cmath.abs (a) c) {System.out.println ("Perimeter is:" + (a+b+c)); } Else{System.out.println ("Parameter Error"); }

Let the three side length, judge whether the triangle can be formed, if possible, to find its area and perimeterProgram:#include #include int Main (){Double A, B, C, D, S, area;printf ("Please enter three positive numbers:");scanf ("%lf%lf%lf", a,b,c);if ( (A + B > C) (A + C > B) (b + C > a)){D = A + B + C;s = 0.5*d;Area = sqrt (s* (s-a) * (s-b) * (s-c));printf ("d=%lf\tarea=%lf\t", D,area); //' \ t ' adjusts the output position to make the output d

/* (Start of program header comment) * Copyright and version declaration of the program part * Copyright (c) 2011, Yantai University School of Computer Students * All rights reserved. * File Name: * Author: Shangpeng * Completion Date: May 28, 2012 * Version number: * Description of task and solution method * Input Description: * Problem Description: Window program first experience, to find the area and perimeter