0 like 0 dislike
4.5k 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 | 4.5k 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:172.69.130.70
©2016-2025

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
| 5.8k 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
| 6.6k 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
| 5.4k 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
| 1.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users