A rectangle occupies 6 half grids and 6 complete grids. If each grid occupies 1 sq cm, then what is the area of the rectangle?
A
10 sq cm
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B
12 sq cm
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C
8 sq cm
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D
9 sq cm
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Solution
The correct option is D 9 sq cm Given, Area occupied by each grid = 1 sq cm Number of complete grids occupied by the rectangle = 6 Number of exactly half grids occupied = 6 Area occupied by the rectangle =6×1+6×12=6+3=9 sq cm