0 like 0 dislike
2.8k 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
| 2.8k 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:172.69.130.71
©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
| 3.6k 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
| 3.4k 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
| 6.5k 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
| 1.1k 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