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:172.69.130.229
©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
| 3.1k 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