0 like 0 dislike
1.7k 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
| 1.7k 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:172.69.58.2
©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
| 2.1k 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
| 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
| 3.7k 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
| 627 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