Brain Teasers
Square's Area
A square has the area of (x+y) squared. What is the perimeter of this square?
Answer
A square has four EQUAL sides. So the area of a square is A x A.Or x + y. Thus making one side = x + y
4 times x + y = 4(x+y)
PERIMETER = 4(x+y)
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Comments
Are you sure about your math? I think it is simple - A (or X or Y) x 4
I don't understand what you mean, I am fairly sure that I understand my maths.
The way your answer was written confused me, though I know the answer. **spoiler** To get one side of a square, you can square root the area. So, if the area is x+y ^2, one of 4 equal sides is the square root of x+y ^2, or x+y. Thus, the four sides, or perimiter, is 4(x+y) or 4x + 4y.
The answer needs clearing up a bit. This is not "teasing" my brain much.
I think this is how it works.
So the area of a square is its side length squared. If the area is (x+y)^2, then the side length is √((x+y)^2), which is x+y.
Since a square has 4 equal sides, its perimeter would be its side length times 4. So if the side length is x+y, then the perimeter is (x+y)*4, or 4(x+y).
Hope this explained anything if you were confused!
So the area of a square is its side length squared. If the area is (x+y)^2, then the side length is √((x+y)^2), which is x+y.
Since a square has 4 equal sides, its perimeter would be its side length times 4. So if the side length is x+y, then the perimeter is (x+y)*4, or 4(x+y).
Hope this explained anything if you were confused!
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