0 like 0 dislike
2.7k 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)AD by (18k points)
ID: 13421 - Available when: Unlimited - Due to: Unlimited
| 2.7k views

21 Answers

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

#include<math.h>

int main()

{
**** *** **** * * a,b,c,d;
** *** * **** * *** * ** * *** *** * * * * **
* * **** * * ** * ** * *
** * ** ** *** **** *** *** * * *
*** * * *** * ** *** *** * ***** * * *




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

}
answered by (-188 points)
0 like 0 dislike
Hidden content!
#include **** * ** *

#include * * **** **

#include **** * *

int main(void) {
**** ** ** * * **** **** * x,a;
** **** *** ***** ********** ** *** * * * ***
* ** * ** * * ** *
** * * ** **** * ** * ***** * * ****
*** *** **** ***** * ** EXIT_SUCCESS;

}
answered by (-38 points)
0 like 0 dislike
Hidden content!
#include *** * ** ** **
**** * ***** * ***

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



int main()

{
* *** *** ** * ** * * ** a, area = 0;
* * ** * *** * ** * * **** ** *** ** * *
**** **** * * * ** * = ** * / 4) * (a * a);
*** ** * * ** * ** *** ** **** * ** * area);


* ** *** * * * 0;

}
answered by (-214 points)
0 like 0 dislike
Hidden content!
#include * * *** **
* * * * * *

int main()

{
* *** * **** * ** * length;
** * * * * *** **** *** * ***** * ** * * *
* ** **** * * * * ** * area;
*** *** * *** **** * *** = sqrt(3) /4 * length * length;
** ***** ** *** * **** * * *** ******* * ** area);
* **** * * ** * *** * 0;

}
answered by (-202 points)
0 like 0 dislike
Hidden content!
*** * * * ***** *
* * * ** *** ** ** *
** ** ** ****



int main() {

int A;

float B;
*** * ** * * *
** *
***** ** * ** * **
*** 0;

}
answered by (-102 points)
0 like 0 dislike
Hidden content!
***** *** **



int *** {

int A;
* B;
** ** * **** ** ** * *
* * * * * *
* ** ****** * *
** ** 0;

}
answered by (-102 points)
0 like 0 dislike
Hidden content!
* **** ***** * ** *



int ** {

int A;
* B;
* * * ** **** ** * ** * *
* * **
* * ** ***** * * *
* * 0;

}
answered by (-102 points)
0 like 0 dislike
Hidden content!
**** * * * * ** *



int * *** {

int A;
* B;
* * * *** * *** * *
* * * **
** * ** * ***
*** * 0;

}
answered by (-102 points)
0 like 0 dislike
Hidden content!
* * * ** * **



int * * {

int A;
* B;
****** ***** * ** * *
* * * *
**** ***** ******* *
* * * 0;

}
answered by (-102 points)
0 like 0 dislike
Hidden content!
*** ** * ** ****



int * {

float A,B;
* ** ** * * ****** * *
** *****
** ***** * *** *
** 0;

}
answered by (-102 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.71.120.2
©2016-2025

Related questions

0 like 0 dislike
23 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 13024 - Available when: Unlimited - Due to: Unlimited
| 3.3k views
0 like 0 dislike
21 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 13022 - Available when: Unlimited - Due to: Unlimited
| 3.2k views
0 like 0 dislike
54 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 13021 - Available when: Unlimited - Due to: Unlimited
| 6k views
0 like 0 dislike
3 answers
[Exercise] Coding (C) - asked Oct 27, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 15398 - Available when: 2016-10-27 18:30:00 - Due to: 2016-10-27 21:00:00
| 987 views
0 like 0 dislike
0 answers
[Resource] asked Dec 31, 2016 in 2016-1 程式設計(一)AD by laich (937 points)
ID: 20301 - Available when: Unlimited - Due to: Unlimited
| 16 views
12,783 questions
183,442 answers
172,219 comments
4,824 users