A group of students formed a circle during a game. The circumference of the circle was about 43.96 ft. ,

and the diameter of the circle was 14 ft.

Which expression best represents the value of π?

Answer and Step-by-step explanation:

C = circumference = 43.96

d = diameter = 14

C =

Divide both sides by d.

=

3.14

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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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