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squared??

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by allfta » Fri Mar 04, 2011 2:04 am
if the length of each side of rectangle R is squared what is the sum of the four squared lengths?

1)the diagonal of rectacgle R has length 15

2)the product of the lengths of two adjacent sides of rectangle R is 108.

OA)A /


I couldn't catch the meaning of the term "squared". What's that mean? I presummed that it means a multiplying two same square root, but in this context, it seems like to mean a quadrangle, whose each side has all same dimension, or a rectangle whose two sides form a right angle.

clarify this plz.
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by Anurag@Gurome » Fri Mar 04, 2011 2:31 am
allfta wrote:if the length of each side of rectangle R is squared what is the sum of the four squared lengths?

1)the diagonal of rectacgle R has length 15
2)the product of the lengths of two adjacent sides of rectangle R is 108.
Yes, the term 'squared' is not much clear.

Say the lengths of the width and breadth of the rectangle R are a and b.
The problem is asking for the value of the sum (a² + b² + a² + b²) = 2(a² + b²) = 2*(The length of the diagonal of the rectangle)

Statement 1: Sufficient as it provides the length of the diagonal.

Statement 1: Not sufficient as the lengths of the two adjacent sides, i.e a and b can have many values.

The correct answer is A.
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by allfta » Fri Mar 04, 2011 4:05 am
Anurag@Gurome wrote:
allfta wrote:if the length of each side of rectangle R is squared what is the sum of the four squared lengths?

1)the diagonal of rectacgle R has length 15
2)the product of the lengths of two adjacent sides of rectangle R is 108.
Yes, the term 'squared' is not much clear.

Say the lengths of the width and breadth of the rectangle R are a and b.
The problem is asking for the value of the sum (a² + b² + a² + b²) = 2(a² + b²) = 2*(The length of the diagonal of the rectangle)

Statement 1: Sufficient as it provides the length of the diagonal.

Statement 1: Not sufficient as the lengths of the two adjacent sides, i.e a and b can have many values.

The correct answer is A.
four squared!!!!!!!!!!!!! means that!!!!!!!!!!! haha very thrilling!
Thanks a lot!
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