Question 2 (2.5 points) Refer to the pie graph that shows the world's languages and the percentages of the population that speak them
What percentage of the world's population does not speak either French or German?
World Languages
Ranssin 5.8%
Spanish 6.45
Chinese 16.5%
Hindi 6.5%
English 8.6%
Other
5
French 24%
Ceas 24%

geometry: triangles

solvers

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