0 like 0 dislike
6.5k 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)AC by (18k points)
ID: 13422 - Available when: Unlimited - Due to: Unlimited
3 flags | 6.5k views
0 0
Called for Help

35 Answers

0 like 0 dislike
Hidden content!
#include<stdio.h>
* * ** * ** ***

int main()

{
** *** * * * * a;
**** **** * * * ** ** ** ** A;
* * * * ** * ***** * * * **** &a);
*** * * * ** * ** **** * **
** * * *** ** *** ** ***** ** **
***** * * *** *
* ** ***** * ** ** ** 0;
* ** **

}
answered by (-124 points)
0 like 0 dislike
Hidden content!
** ** * ** ***
* * * ** ** * *





 int main ()

{
* * * *** * ** *** ** a,b;
* ** * *** * * * ** * ** ** ** *** &a);


* * ** ** ** * * ** *** = sqrtf(3)/4*(a*a);


******* * * ** * ** ** **** ** * ** ****


********** * **** * * 0;

}
answered by (-383 points)
0 like 0 dislike
Hidden content!
* * * *** *** * **
** ****** * ** * * ****



 main()

{
** *** ***** ** * * * * *


**** **** * * *** * * ** **** *


** * * * * ** * *




***** * *** * ** * ****** **

}
answered by (-383 points)
0 like 0 dislike
Hidden content!
* *** * * ** * ** *
** * ** * *
* * **** * * * **

int main()

{

float ** *
*** *** * ** * * * **

b = *** * *
* * *** * ***






* ** * * * * system * ** * ** **
**** **** * ** return 0;
*** **
answered by (-136 points)
0 like 0 dislike
Hidden content!
* * **** * ***
** *** * **** *
* ** ** ** * *





int main(){


** * * **** * *** **** i, a, j;
** *** * *** *** * *** * * ** * *** *


** ******** *** *** * = sqrt(3) / 4;


****** *** * ** ** * * = i * (a * a);


* * * * **** ***** * * ****** * *** ** j);



return 0;

}
answered by (-105 points)
0 like 0 dislike
Hidden content!
***** *** * * ****
*** * *** *





 int main ()

{
**** * **** **** ** * ** * * * ** a,b;
* ** *** *** ** *** * ** * * * * * &a);


*** *** * * * ** * * ** * * = sqrtf(3)/4*(a*a);


* ** ** ** ****** ** ** * * * * ** ** * *


* ** * ** ** * * * * * 0;

}
answered by (-143 points)
0 like 0 dislike
Hidden content!
** * ** ** ******
********* ** *





 int main ()

{
* * ** * * * * **** ******** a,b;
**** * * ** * ** **** *** ** ******* &a);


** ** * * * ** * * ** *** = sqrt(3)/4*(a*a);


* * * * * ** * * * * * * ** * *** * * *


* ** ** ** * ** 0;

}
answered by (-143 points)
0 like 0 dislike
Hidden content!
#include *** * **

#include * * ** * * **

#include *** * ** *



int main()

{
* * *** *** * **** * a;
**** ** ** **** *** * *** * * ** *****
* * ** ** ** * ** ** *** * *** * ** * ** * ** *** **
** * ***** * *** * * ** 0;

}
answered by (-85 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

int main()

{
* *** * *** * * * * * *** * ** a;
** ** **** ****** *** ** * area;
* * * ** ***** ** *
**** ** ** ** * ** ** * * ** ** * *** **
* * ***** ** *** ** *** * **** ***
* * * * * * ******* ** * **** * ** **** * ** *

 }
answered by (-124 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

#include *** ***** ** *

#include <math.h>

int main()

{
* * ** ** ** * * * a, b;
* **** * * * * * * ****** ** * ********
** **** * * ** ****** *** **
** ** *** ***** ** * ****** * ** * * *** *
* * * * * * * * * ***** * * * **** *
* **** * *** ** ** ** 0;
* * * **** * *** * *
answered by (-122 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:104.23.243.4
©2016-2026

Related questions

0 like 0 dislike
43 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 13025 - Available when: Unlimited - Due to: Unlimited
| 8k views
0 like 0 dislike
49 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 13023 - Available when: Unlimited - Due to: Unlimited
| 9.3k views
0 like 0 dislike
39 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 13020 - Available when: Unlimited - Due to: Unlimited
| 7.6k views
0 like 0 dislike
7 answers
[Exercise] Coding (C) - asked Oct 27, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 15399 - Available when: 2016-10-27 18:30:00 - Due to: 2016-10-27 21:00:00
| 2.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users