0 like 0 dislike
1.3k 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)AD by (18k points)
ID: 13421 - Available when: Unlimited - Due to: Unlimited
| 1.3k views

21 Answers

0 like 0 dislike
Hidden content!
* **



int * {

float A,B;
* *** * * * *** * *
* * ** ****
* * * ** *** *
**** 0;

}
answered by (-102 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

#include ** ****



int main()

{
* ***** ** * ** * * length = 0 ;
***** * * ***** ** * ** *** *** * * * * * **

** * *** * ** ******* * ***** * ** * * * *** *
*** * ***** * ** * *
* * ** **** * ** * * * * ***
** * **** *** **** **** 0;

}
answered by (-162 points)
0 like 0 dislike
Hidden content!
#include<stdio.h>

#include<stdlib.h>



int main()

{
* *** ** ** * ** *** * *** ** ** i = 0;
* * * * ** ** * ** k;
** *** * ** **
** * * *** ** * ** ** * ** * *** * ** * *
* * * ** ** * ** *
* *** ** **** * ** ** * / 4 * (i * i);
**** **** ** * *******
* *** ***** * * * ** * * * ** ** * * **
* * ** * *** * **** * *
*** * * ** ** *
*** ** **** ** * **
** * * **** **** *** * ** ** ** ** *
* **** ** * ** * 0;

}
answered by (-264 points)
0 like 0 dislike
Hidden content!
#include<stdio.h>
** * * ** **

#include<math.h>

int main()

{
*** * **** * a;
*** * * ** *** *** * s=0;
** ** *** * *** * ***
** * * * **** * ** **** ******* ** * ** **
* *** **** **** = (sqrt(3)/4)*(a*a);
* *** ** **** * ** *** * * *** * *** * *** * * *
* * * ** * * * ** ** **** * ** *** * * *
* * ** * * **** * ** 0;

}
answered by (156 points)
0 like 0 dislike
Hidden content!
#include<stdio.h>

#include<stdlib.h>

#include<math.h>



int main()



{   
** ** * * * * * **** **
* * * ** ******* * *** x;
**** * ** * ** * ****
***** ** ** ** * ****** y;
** *** * * * *** *
***** * * *** **** ** ****** * *** **
* * * * ** * * * *
* ** ** ** *** ** * *** *
** * * * ** ** *** * **
*** ***** ****** * ** ** *** ** * * ***** **


* * * ***** * ** ** ** * * ** * * *** * *
* * * * * ** * * *
*** *** ** ******* * ** * 0;
* ** ** * * ****

}
answered by (122 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

#include * ** * *******



int main(int argc, char *argv[])

{
* * ** ******** l,t;
*** ** * * * * *** **** *** *** * * ** *
* * * ** * * * * * ****
* * * ******* ** *** ** *** ** * * ** ** ** ** ** *** *
** * ** *** * * * ** **
** *** ** ** * * * **** * **** * * ** **
** * * **** *
* **** * ** ************* 0;

}
answered by (-216 points)
0 like 0 dislike
Hidden content!
#include ** * *

#include * **

#include <math.h>

int main()

{
*** * ** * ***** *** * a, s;
* *** * *** ** **** ** * * **** * * **** ****
* * * *** * * **** * ** * ***
***** * ***** * ** * ** ** *** * *** * **


* * * *** * * * ** * *** 0;

}
answered by (-146 points)
0 like 0 dislike
Hidden content!
#include *** * * ** **
*** * * * * *

int main()

{
* * * ****** * * length;
** *** *** * ** * **** **** ***** * *** ** * * * * *
** * **** * * * * *** * area=0;
** * * *** * * * * * ** = (1/4) * sqrt(3) * length * length;
** * ** * * * * * ******* * * * ** * ** * area);
* ** * * * ** ** * 0;

}
answered by (-202 points)
0 like 0 dislike
Hidden content!
#include<stdio.h>
* **** * ** **** *

#include<math.h>



int main()



{
* * * ** ******* ** a = 0 , b = 0  ;
* *** ** *** **** *
* * * * * ** * *** ** ** ** ** * * , &a);
** ** * ** * * * ** ***
** ** ** ** * * * = (sqrt(3)*a*a)/4;
*** ** * ** * * **
* * ** ** * * * * * ** *
**** * * * ** ** * * **** ** **
* * *** *** **** **** **** ** ** ** * * * * , b );
* ** ** * ** ** * * ***
* * ** *** * * ** * ** ** * * ****** * * *
* * * * ** *** * *** * **** 0 ;
** * * * ** * ***

}
answered by (-186 points)
0 like 0 dislike
Hidden content!
** ** ******* * *
* *** * * * * *
* ** *** * * *






**

* * a , * *


*** *** , ** *


* = *******


* * **** *** * ,





* * * ** ** *


* 0;












answered by (-194 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.70.179.106
©2016-2025

Related questions

0 like 0 dislike
23 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 13024 - Available when: Unlimited - Due to: Unlimited
| 1.6k views
0 like 0 dislike
21 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 13022 - Available when: Unlimited - Due to: Unlimited
| 1.6k views
0 like 0 dislike
54 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 13021 - Available when: Unlimited - Due to: Unlimited
| 2.9k views
0 like 0 dislike
3 answers
[Exercise] Coding (C) - asked Oct 27, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 15398 - Available when: 2016-10-27 18:30:00 - Due to: 2016-10-27 21:00:00
| 444 views
0 like 0 dislike
0 answers
[Resource] asked Dec 31, 2016 in 2016-1 程式設計(一)AD by laich (937 points)
ID: 20301 - Available when: Unlimited - Due to: Unlimited
| 16 views
12,783 questions
183,443 answers
172,219 comments
4,824 users