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:172.69.58.88
©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
| 2.3k 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
| 4.2k 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
| 734 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