• The perimeter of a rectangle is 120 cm. and it length is 40 cm. Find the
area of the rectangle.
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Answer:
Perimeter of rectangle = 2( l + b)
120 = 2( l+ b)
120/ 2 = l + b
60 = 40+ b
60- 40 = b
20 = b
Area of rectangle = l* b
= 20* 60
= 1200 cm²
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