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:172.71.254.223
©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