0 like 0 dislike
5.1k 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 | 5.1k 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:172.69.17.67
©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
| 6.5k 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
| 7.4k 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
| 6.1k 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
| 1.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users