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