How do i find out the area if you already know the perimeter?

2008-08-20 2:47 pm
I'm only 13 so i don't want anything hard... a square has a perimeter of 24 cm how to i find out the area. Please help I've been stuck for 2hours on this :(
更新1:

the answer is in cm2, if you don't know

回答 (7)

2008-08-20 2:55 pm
✔ 最佳答案
a square has 4 equal sides that add up to the perimeter. so take 24 and divide it by the 4 sides

24/4 = 6

this is the length of each side.

no to find the area of a square you multiply base by height

6*6=36

so the answer is 36 cm^2
2008-08-20 10:15 pm
Find the area:
= (24/4)²
= 6² or 36

Answer: 36 sq cm is the area.

Method (find the side of the square [x]):
4x = 24 cm
x = 24 cm/4 or 6 cm

Then find the area:
= 6 cm * 6 cm
= 36 sq cm
2008-08-20 9:54 pm
If it is a square, then all the side are equal. So

24/4 = 6 the length of each side.

Area = 6 x 6 = 36cm^2
2008-08-20 9:54 pm
square has 4 equal length...
let the length of the square be a...
a + a + a + a = 24
4a = 24
a = 6cm
therefore... the length of the square is 6cm...
therefore...
the area of the square:-
= 6 x 6
= 36cm^2
2008-08-20 10:52 pm
A square has 4 equal sides.

24 cm/4
= 6 cm per sides

6 cm * 6 cm
= 36 cm²
2008-08-20 10:00 pm
Hi,
ANASER:
A= 6*6
A=36

How to find it:
Well, the area of rectangle, which includes a square, is length multiplied by width. We can write that like this:
A = L*W (Where I've used * to indicate multiplication.)
So, we need to find out the length of the sides. The key to this is the word "square." That means all sides are equal. Since there are four sides that add up to 24 cm (the perimeter is the sum of the lengths of all the sides.), we just divide 24 by 4.
S=24/6
S=6
Now, we just say
A= S*S
=6*6
=36
You can also express that as follows:
A=S² (where the little 2 means that the length of the side is multiplied by itself.)
Hope this helps.

FE
2008-08-20 9:57 pm
As all the sides are equal,
each side of the square=(24/4)cm
=6cm

Area of square=6cm*6cm
=36cm^2


收錄日期: 2021-05-01 11:00:22
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080820064752AAokuM7

檢視 Wayback Machine 備份