0 like 0 dislike
3.9k 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)AC by (18k points)
ID: 13422 - Available when: Unlimited - Due to: Unlimited
3 flags | 3.9k 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:172.69.58.57
©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
| 4.9k 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
| 5.8k 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
| 4.5k 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
| 1.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users