Can square prices of foam board, each with an area of 169 square inches, and be cut and used to construct a cube with a volume of 1,728 cubic inches.
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No, they cannot. A square has 4 sides that are equal. To find the area of a square, we multiply its length and width; since they are the same, we are basically squaring that side
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The length of rectangle is more than double its breadth by 2 cm. Find the length and breadth of rectangle .
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Perimeter of rectangle =40 cm (given)
condition :- length = 2× breadth +2
⇒l=2b+2
perimeter p=2(l+b)=40
⇒2(2b+2+b)=40
⇒2(3b+2)=40
⇒6b=40−4=36
∴b=6cm
l=2×6+2=12+2=14cm
∴ length =14 cm, breadth =6 cm
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