Draw a quick picture of 3 hundreds, 5 tens and 7 ones. what number does your quick picture show? write in the three different ways

In the figure attached, the quick picture can be seen. See the second picture for clarification.

Another way to represent that number is in a table format, as:

Hundreds   tens   ones

      3             5         7

Finally, 3 hundreds 5 tens and 7 ones are equal to 300 + 50 + 7 = 357

tube or goog would be a great resource to with that question

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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