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:172.69.17.128
©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
| 2.1k 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
| 2k 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
| 3.7k 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
| 618 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