Raj is visiting the united states and needs to convert 2,000 rupees to us dollars.

The first thing we must do for this case is to find the conversion of rupees to US dollars.

Currently, the conversion is:

1 rupee = 0.014 $

Then, to find the amount of $ in 2000 rupees, we make the following rule of three:

1 rupee -----------------> 0.014 $

2000 rupees ----------> x

From here, we clear the value of x.

We have then:

2,000 rupees are 28 US dollars.

geometry: triangles

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lessons

answers archive

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+

25.45584