20. The area of a rectangle whose length and breadth are 21?m and 3nm respectively is
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a) 61?m?n b) 61mn c) 61mn? d) 61m?n?
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Answer:
a) 67
b)75
c)98
d) 76 is your answer....
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Answer:
Area of rectangle is = length × Breadth
21 ×3 = 63 mn²
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