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:172.70.127.57
©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
| 1.5k 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