0 like 0 dislike
5.4k 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 | 5.4k 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:104.23.243.165
©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
| 6.8k 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
| 7.8k 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
| 6.4k 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
| 1.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users