0 like 0 dislike
2.3k 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
| 2.3k 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:172.70.127.72
©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
| 2.9k 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
| 2.8k 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
| 5.2k 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
| 871 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