A card has perimetre =40 cm and area=100 sq cm.Its side is _______ cm *
10
140
60
80
Answers
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The side is 10 cm long if it is a square,otherwise if it is a rectangular card, length is 20 cm and breadth is 10cm.
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Step-by-step explanation:
Perimeter
2(l+b)=40
(l+b)=20
Area
l×b=100
20=100
(100×1),(50×20),(25×4),(10×10)
l=10,b=10
10
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