0 like 0 dislike
4.1k 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 | 4.1k 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:172.69.130.58
©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
| 5.2k 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
| 6.1k 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
| 4.9k 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
| 1.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users