0 like 0 dislike
3.1k 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)AD by (18k points)
ID: 13421 - Available when: Unlimited - Due to: Unlimited
| 3.1k 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:172.69.7.77
©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
| 4k 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
| 3.7k 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
| 7.1k 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
| 1.2k 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