0 like 0 dislike
2.9k views
正三角形的面積公式是[4分之根號3乘a平方],請設計一個程式,讓使用者輸入正三角形的邊長,然後輸出正三角形的面積,輸出時請輸出並四捨五入到小數點後兩位。

範例輸入:

8

範例輸出:

21.71
[Normal] Coding (C) - asked in 2016-1 程式設計(一)AD by (18k points)
ID: 13421 - Available when: Unlimited - Due to: Unlimited
| 2.9k views

21 Answers

0 like 0 dislike
Hidden content!
** * * * * ** *



int * {

float A,B;
* * *** * ** * *
* * * * **
** * *** ** ** ****
* * 0;

}
answered by (-102 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

#include * ** ****** *



int main()

{
* ** * ** * *** * ** length = 0 ;
* * * * * * * *** **** * * ***** **** * **

** * * * * *** * * *** * ** ****** *
** *** ** * * ***
* * * ** ** * * * ** **** ****** *** *** *
**** ** **** * * * * * 0;

}
answered by (-162 points)
0 like 0 dislike
Hidden content!
#include<stdio.h>

#include<stdlib.h>



int main()

{
**** * ** * * ** * * ** i = 0;
* * * ** ** ** *** ** k;
** * ** * *** * * *
* ** **** * * * * * *** ** * ** ** *** *****
* ******* * * *
** * *** * * ** *** / 4 * (i * i);
* ** * ** ***
* *** *** * *** **** ** ** ** * ****
*** **** *** ** * *** *
*** * ** * ***** * ** **
* * **** * * ** * **
* **** * * ** * * * ** ** * *
* ** ******* * * *** ** * 0;

}
answered by (-264 points)
0 like 0 dislike
Hidden content!
#include<stdio.h>
**** ** * ** *

#include<math.h>

int main()

{
* **** *** *** ***** *** a;
* * ** *** ** * * ** s=0;
* ** ** * * *** *** *
*** ** ****** * * * * **** ** * ** ** *
** * ** * * * * *** * = (sqrt(3)/4)*(a*a);
**** ** * ***** *** ** * ** * **** ** * * *
* * * ** *** * * ** ** * **
**** *** ** * * ** * * ** 0;

}
answered by (156 points)
0 like 0 dislike
Hidden content!
#include<stdio.h>

#include<stdlib.h>

#include<math.h>



int main()



{   
***** ** ** ** * ** * * **
* ** * * * * *** * x;
* ******** * * ***
**** *** * ** * * *** * y;
* ** ** * ** ** ******
** * *** ** * * * * ** **** * * ** * **
* * * ** * ** **
* * ***** **** * ** ** ***
** *** * * * * ***
** * ** * * **** * * ** * * ***


**** * * * * * ** * ** ** ** * * ** *
* * * * * *** *
** * * * ** * ** * * ** * * 0;
*** ** ** * ** * *** * *

}
answered by (122 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

#include * ** * ** **



int main(int argc, char *argv[])

{
*** ** * ** * *** * ** * l,t;
** *** * ** *** ** ** *** ******* * * *
* *** *** ** * ** ***
* ** * * ** * * ** ** * *** ** * * ******* *
*** ** ***** ** ** **
* * * * ** **** * * ** *** ** * * **
**** ***** ** *****
* ** * * *** * * * * 0;

}
answered by (-216 points)
0 like 0 dislike
Hidden content!
#include * * ******

#include * ***** * **

#include <math.h>

int main()

{
* ** *** ** * * * * * a, s;
* * ** ** ** *** * *** ** ** *** ** * *** * * * *
* * * ***** *** *** * *
* **** * *** * *** ** * ** ** ** ** * ** * * **


** *** ** * * * * * ** ** 0;

}
answered by (-146 points)
0 like 0 dislike
Hidden content!
#include ***** * * **
* * **** * * *****

int main()

{
* * * * ****** length;
***** * ** * * ** *** * *** *** * * * *
* * * * * ** area=0;
*** * ** * ******** ** = (1/4) * sqrt(3) * length * length;
* * * ** * ** ** ** **** ***** **** ******* area);
* * * *** * ***** **** 0;

}
answered by (-202 points)
0 like 0 dislike
Hidden content!
#include<stdio.h>
**** ** * *** * *** *

#include<math.h>



int main()



{
* *** *** * * * *** ** ** * a = 0 , b = 0  ;
*** * * **** * * * *
** *** * * *** ******** *** **** ** ** ** , &a);
** * * * *** **** * *
* *** * * *** * * ** * *** = (sqrt(3)*a*a)/4;
****** *** **** **** *
* *** * *** ** * *** * *
* * **** ****** *** * *****
**** ** * *** ** * * * * **** * **** * * * * * ** , b );
****** ** ** *** *** * **
*** * ** * **** *** ***** ** * ****** * * ** * ****
** ** *** * * ** ** * ** * * * 0 ;
* * ** * * ***** ***** *

}
answered by (-186 points)
0 like 0 dislike
Hidden content!
* * ** *
** *** * * *** *
* ** * ** * *






**
*
** a , ***


*** * * * ** * , *** ** *


= * *** *


** ** ** , *





** * * ** *


* 0;












answered by (-194 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.70.127.115
©2016-2025

Related questions

0 like 0 dislike
23 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 13024 - Available when: Unlimited - Due to: Unlimited
| 3.7k views
0 like 0 dislike
21 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 13022 - Available when: Unlimited - Due to: Unlimited
| 3.5k views
0 like 0 dislike
54 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 13021 - Available when: Unlimited - Due to: Unlimited
| 6.6k views
0 like 0 dislike
3 answers
[Exercise] Coding (C) - asked Oct 27, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 15398 - Available when: 2016-10-27 18:30:00 - Due to: 2016-10-27 21:00:00
| 1.1k views
0 like 0 dislike
0 answers
[Resource] asked Dec 31, 2016 in 2016-1 程式設計(一)AD by laich (937 points)
ID: 20301 - Available when: Unlimited - Due to: Unlimited
| 16 views
12,783 questions
183,442 answers
172,219 comments
4,824 users