0 like 0 dislike
5.7k 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)AC by (18k points)
ID: 13422 - Available when: Unlimited - Due to: Unlimited
3 flags | 5.7k 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:104.23.243.165
©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
| 7.2k 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
| 8.3k 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
| 6.8k 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
| 1.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users