if the area of a square is 49 what is the perimeter?
2008-08-17 6:56 pm
its for a math problem and can you leave your email address i have more questions
回答 (10)
2008-08-17 7:26 pm
✔ 最佳答案
Good question Ray. You seem to be a little bit confused in areas and perimeters. Its a good ques. anyway. The formula for area of square is = legnth^2
Area=L^2
49=x^2
x=square root of 49
x=7
legnth = 7
now you can easily find the perimeter
(sum of all sides)
7+7+7+7
=28
The perimeter is 28
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2008-08-18 2:01 am
If s is the length of a side of the square then
s*s = 49
or s = 7
Since all sides of a square have the same length the perimeter is
4*s = 4*7 = 28
s*s = 49
or s = 7
Since all sides of a square have the same length the perimeter is
4*s = 4*7 = 28
參考: Longtime college math teacher
2008-08-18 3:05 am
the perimeter is 28.
and no e-mail address.
and no e-mail address.
2008-08-18 2:07 am
L² = 49
L = 7
P = 4 L
P = 28
L = 7
P = 4 L
P = 28
2008-08-18 2:05 am
28
2008-08-18 2:05 am
Answer:28
The square root of 49 is 7
A square has 4 equal sides
7x4=28
The square root of 49 is 7
A square has 4 equal sides
7x4=28
參考: My brain
2008-08-18 2:02 am
You need to calculate the length of each side. Since we know the area is a square, then take the square root of 49, to give 7 for each side.
It should now be obvious that the perimeter is 4 * 7 = 28.
It should now be obvious that the perimeter is 4 * 7 = 28.
2008-08-18 2:02 am
take the square root of the area, then multiply by 4
2008-08-18 2:01 am
28.
The area of a square is equal to its side squared. So if the side is a, then the area is a^2=49. Take the square root of both sides and you get a=7. A square has 4 sides, so multiply a by 4 and you get 4a=4(7)=28.
The area of a square is equal to its side squared. So if the side is a, then the area is a^2=49. Take the square root of both sides and you get a=7. A square has 4 sides, so multiply a by 4 and you get 4a=4(7)=28.
2008-08-18 2:01 am
â49
= â(7 x 7)
= 7 units
7 x 4 sides
= 28 units
= â(7 x 7)
= 7 units
7 x 4 sides
= 28 units
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