0 like 0 dislike
5.5k 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 | 5.5k 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:104.23.197.65
©2016-2026

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
| 6.9k 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
| 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
| 6.5k 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
| 1.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users