0 like 0 dislike
995 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 | 995 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:172.70.100.54
©2016-2024

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
| 1.1k 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
| 1.2k 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
| 1.3k 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
| 281 views
12,783 questions
183,443 answers
172,219 comments
4,824 users