A wire is in the shape of a square of side 20 cm. If the wire is rebent into a rectangle of length 22 cm, find its breadth. Which encloses more area the square or the rectangle?
Its answer is 18 cm sq.
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Answer:
18 cm sq
perimeter of square = perimeter of rectangle
4×S=2×l+2×b
4×20=2×22+2×b
80=44+2b
80-44=2b
36/2=b
b=18
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