By using dot (ยท) patterns, which of the following numbers can be arranged in all the three ways namely a line, a triangle and a rectangle?
A 9
B 10
C 11
D 12
Clarify the question
Ans 3:
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Class : Class 6
There is no mention of what type pattern, we can make line, triangle and rectangle with 12 dots also
Ans 4:
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Class : Class 9
Answer is definitely D because 12 is divisible by both 4 and 3 so rectangle and triangle both can be made ............ line can be made from all numbers
Ans 5:
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Ans 6:
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Ans 12:
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Ans 24:
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Ans 26:
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Class : Class 8
In pascal's triangle, the 1st row is always 1, second row is natural number, 3rd is of numbers which can form triangles, 4th is of numbers which can form rectangles. So the number common in rows 2, 3