0 like 0 dislike
4.2k 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 | 4.2k 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:108.162.241.33
©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
| 5.5k 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
| 6.3k 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
| 5.1k 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