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!
* ** **** * ****
* ** ** * * * *

int * * *

{



float a;float b;




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

}
answered by (-276 points)
0 like 0 dislike
Hidden content!
* ******* * * *
* ** * **

int ****

{



float * * a;float b;




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

}
answered by (-276 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>
** ** *** * * * * * ** main()

    {
* ** ** **** * * * ** * * * *** a,b,c;
* * *** * ** ***** * * *** * * ** * * * ** ** ** * *** ** * ** **
* *** ** *** ** * *** * **** ** * * *** *** = sqrt(3);
** ** ** * ** *** **** * *** * **** = ((b / 4) * (a * a));
* ** * * * * **** * * ** *** * * * * ** * ** * *
** *** ***** * ** * ***** ** *** ** ** * ** 0;
* ** * **** * * * *
answered by (-216 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

#include <math.h>





int main() {
** * ********** **** * ** *

// * ** ** * ** *** ** * *
** ** *** * *** ** ** *** a = 0;
** * ** * * ** *
*** * ** * * * *** ** ** ** * ** * * *
*** * * ** * *** **
* *** ** * * * * * ** **** ** *** * * *
**** ** ** * ** * * **
** * ** ** * * *** * * * ** 0;

}
answered by (-126 points)
0 like 0 dislike
Hidden content!
* * ** * * **
* **** ***



int main()

{
* * * ** * **** * ** n;
* * ** * * **** * * ***** * *** ** ** ***
* * ** * * ******* * * * * ****** * **** * / 4 * n * n);

}
answered by (18k points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:104.23.197.64
©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
| 9.2k 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
| 7.5k 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