0 like 0 dislike
3.1k 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 | 3.1k 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:172.69.7.169
©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
| 3.8k 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
| 4.4k 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
| 3.6k 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
| 1.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users