0 like 0 dislike
3.3k 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 | 3.3k 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:172.69.17.94
©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
| 4.1k 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
| 4.9k 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
| 3.8k 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
| 1.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users