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Re: How many rectangles are found in the lattice below?
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09 Apr 2019, 21:17
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The length has 6 lines and width has 5 lines to make a rectangle take any 2 lines from width and other 2 lines from length hence 6c2 and 5c2 thus 6c2*5C2 =150 thus D
Re: How many rectangles are found in the lattice below?
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11 Apr 2019, 01:47
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Each rectangle is uniquely determined by the intersections between two vertical lines and two horizontal lines. Since we have 6 vertical lines and 5 horizontal lines, the number of rectangles is 6C2*5C2 = 15*10 = 150.
Therefore, D is the answer. Answer: D
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Re: How many rectangles are found in the lattice below?
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13 Apr 2019, 04:17
heisenberg11 wrote:
Are we also taking square into accounts?
Yes, we are taking squares too into account since squares are also rectangles.. I can say.. Squares are rectangles. Rectangles are parallelogram and parallelogram are quadrilateral.
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