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<stdio.h>
** * * ** ** *

int main()

{
** * * * **** ** ** * *** a;
***** *** ** * * ** ** * ** A;
* * * ****** * ** ** * ** * *** * * ** &a);
** ** ** * * *** * * ** * * * *
* * ****** * * ** * * * * *** ** ** **
***** ** *** * **
** ** * ***** * * ** * ** 0;
** **** * *** * *** * *****

}
answered by (-124 points)
0 like 0 dislike
Hidden content!
*** * ******* ***
* * *** * * *** **





 int main ()

{
* ***** * ** *** * *** ** a,b;
* * * * * *** *** **** **** * *** * * * &a);


** * * ** * *** * ** **** * = sqrtf(3)/4*(a*a);


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


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

}
answered by (-383 points)
0 like 0 dislike
Hidden content!
** *** * ***** *
* *** * * *** ***



 main()

{
** ** *** * * * ** **** *


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


** * *** **




* * ** * ** ** * *

}
answered by (-383 points)
0 like 0 dislike
Hidden content!
***** * * ** * * ** **
* * * * *** *****
* *** * ** * **

int main()

{

float * *
* *** * * * ** *

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






***** ** ***** system *** *** ** ****
* **** *** * return 0;
*** **
answered by (-136 points)
0 like 0 dislike
Hidden content!
* * * * ** * *
** * * * ** ** *
* *** ** * **





int main(){


** * * * ** ** * **** *** i, a, j;
* ****** ** * ****** * * ** * * * ** * ** **


**** * * * * * = sqrt(3) / 4;


**** * * * * ** = i * (a * a);


* * ** * * * **** ** * * * * * j);



return 0;

}
answered by (-105 points)
0 like 0 dislike
Hidden content!
* ***** ***
*** * ** ******* *





 int main ()

{
* **** * * ** * ***** * ******* a,b;
* * * * * * * ** **** * * ***** * &a);


* * * ** * *** * **** = sqrtf(3)/4*(a*a);


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


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

}
answered by (-143 points)
0 like 0 dislike
Hidden content!
* ** *** ** ** *
*** **** * * ***





 int main ()

{
* *** ** ********** * * a,b;
* ** * * * * * * ***** ** * * &a);


* * * * ** * **** **** = sqrt(3)/4*(a*a);


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


** * * ** * * 0;

}
answered by (-143 points)
0 like 0 dislike
Hidden content!
#include ** ** * * *

#include * * *** **

#include * ** ** *



int main()

{
**** ** ****** * ** ** * a;
** ** ***** * ** * ** * ** * * *** * ** * * ***
* * ** ** ** * * * * * * *** ** *
* * * * ** ** * * 0;

}
answered by (-85 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

int main()

{
** *** ** ****** ****** * a;
*** * * ** ** *** * **** ** * ** area;
***** * * * * * **
** * * ** ** * *** *** * * ***** *
***** * * * ** * ****
** * *** * * * **** ****** *

 }
answered by (-124 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

#include * * ** **

#include <math.h>

int main()

{
** ** ** ** * *** * a, b;
**** ** *** * * ** * ******* ** * * *** ** *
* * * * * * * *** ** * * **
** * ** * *** * ** * * *
** * *** ** *** * * *** * ** ** **** * *
*** ** ** ** ** * *** 0;
* **** *** *** **
answered by (-122 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.214.205
©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