0 like 0 dislike
1.9k 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
| 1.9k 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:172.71.254.236
©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
| 2.5k 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
| 2.4k 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
| 4.3k 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
| 735 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