0 like 0 dislike
2.9k 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
| 2.9k 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:172.71.254.105
©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
| 3.7k 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
| 3.5k 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
| 6.6k 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
| 1.1k 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
183,442 answers
172,219 comments
4,824 users