0 like 0 dislike
2.6k 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
| 2.6k 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:104.23.190.141
©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
| 3.2k 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
| 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
| 5.7k 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
| 950 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