0 like 0 dislike
2.7k 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
| 2.7k 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:172.71.120.2
©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
| 3.3k 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
| 3.2k 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
| 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
| 987 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