0 like 0 dislike
1.7k 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
| 1.7k 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:172.69.17.204
©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
| 2.2k 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
| 2.1k 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
| 3.8k 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
| 649 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