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Take a look at the following figure and count the number of triangles. Can you guess ?
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By Ximena

Take a look at the following figure and count the number of triangles. Can you guess ?
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About the author
Ximena

The arithmetic mean of 8 observations was found to be 12.5, then the sum of the observations is ___

a)100

b)

Can you do this division
25÷50 =
tell me sol fast if you know it .
It is so easy
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