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:172.69.59.92
©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
| 2.1k 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
| 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
| 629 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