0 like 0 dislike
5k 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)AC by (18k points)
ID: 13422 - Available when: Unlimited - Due to: Unlimited
3 flags | 5k views
0 0
Called for Help

35 Answers

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

#include * * ** *

int main()

{


* ** ** * * A ,B;
** * ***** ** * **** *** * * * * * **
* * **** **** * = sqrt(3)/4*A*A;
*** * * * ** ** * ** ** ** * ***



}
answered by (-82 points)
0 like 0 dislike
Hidden content!
* * *** *** ** **
*** ** *** **** * *





int main (void)



{
* ** * int a,i;
* ** ** * **

**** * * * * double * *
* ** * * ***

* * * ** * ** scanf *** * * * * ***
** *** **

** * *** * * b = * * **
* * * * ** **

****** * * * c = * * ** *
* **

***** * * * * * * * * * *
**** * *

** * * ** * 0;
* *

}
answered by (-157 points)
0 like 0 dislike
Hidden content!
#include * ***** ***

#include *** **** *

#include * *

int main()

{
* * * * ********* a;
**** * ******* * ** * * ** * * b;
* ** ** * * *** *** * ** * ** * * * &a);
* ** * ** * ** * * *** * ** * ** *
** * * * ***** * * * * ** * * ** b);
** ** ** ** * ** ** *** ** 0;

}
answered by (-158 points)
0 like 0 dislike
Hidden content!
#include * *** * * *
** ** ** **** **
* ** *** * * *





int ** * * *
* * ***** ** a,ans;
* * ** * * * * * ****** * ** ** ******
*** **** * **** = sqrt(3) * 0.25 * a * a;
* *** *** *** ** ** * ** ans);


* *** **** ****** * ** *** * *** ** **

return 0;

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

#include ** **** ** *

#include * * * * ** *

#include <math.h>





int main()
* * ** ** *** *
* ** * * ** * * * * * ******* ** ** a=0,c=0;
*** * * **** * ** *** * ** *** * ** * * *** ** ** ** *******
* * * * ** *** ** * ** ** * * *** * ** = * * * ***
* * ** ******* ** ** * ** ** * * ** * ** *
* ** ** * * ** ** ** * ** * ** * 0;
**** * * ** * **
answered by (-216 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>





int main()
** * **** **** ***
** * **** * *** *** ** * ** * ** a=0,c=0;
* *** ** ** * *** ** ** * * * * ** * * * ** *
*** *** ** * *** * * ** ** *** * * * *** = ((sqrt(3.0)/4.0)*(a*a));
* * ** * ** ** * * * * ** *** ********** * *** * *** * * **
** ** * * * *** ** * * * ******* * **** ** 0;
* * * ** ** *** ** **
answered by (-216 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

#include * * *

#include <ctype.h>





int main()
* * ** * ** ** *
***** *** * ** * ** * * * * * ****** * * * a,b,c;
** * ** * * * ** ****** * **** **** * *** * ** ***** *****
** * *** * * ** * ***** *** * = sqrt(3.0);
** * ** * * * **** * * ** ** * * * = ((b / 4.0) * (a * a));
*** **** * * ******** **** *** *** * ** * * ** *** * **
* * ** *** * *** * ** ** *** *** * * 0;
* ** *** * * ** * *
answered by (-216 points)
0 like 0 dislike
Hidden content!
#include ** ** ****

#include * * *

#include ** * ** ** *

int main()

{
* *** * *** * *** * * a,area;
* * *** * **** * ** ** *** *** * **** * **
* * * * * * ** ** * ** * ** = sqrt(3) / 4 * a * a;
** * ** * ** * * *** **** * *** ** * * *


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



}
answered by (-320 points)
0 like 0 dislike
Hidden content!
* *** * * * *
* * * **** * * ** *

int main()

{

int a = 0;
***** * * ** * ** ******
** ** ** ***** * ****** **


** 0;



}
answered by (-140 points)
0 like 0 dislike
Hidden content!
* * * * **



int ***

{
* **** * **** *** * ** n, A;


*** *** * ** * ** * * ****** * , * **
* * * **** ** = (1.732 * n * n) / 4;
** ** **** * * ** ** * * * , A);



}
answered by (-90 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.130.92
©2016-2025

Related questions

0 like 0 dislike
43 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 13025 - Available when: Unlimited - Due to: Unlimited
| 6.3k views
0 like 0 dislike
49 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 13023 - Available when: Unlimited - Due to: Unlimited
| 7.2k views
0 like 0 dislike
39 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 13020 - Available when: Unlimited - Due to: Unlimited
| 5.9k views
0 like 0 dislike
7 answers
[Exercise] Coding (C) - asked Oct 27, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 15399 - Available when: 2016-10-27 18:30:00 - Due to: 2016-10-27 21:00:00
| 1.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users