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:104.23.197.64
©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