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Mathematics 14 Online
OpenStudy (ledah):

A polygon has an area of 100 square inches and one of its sides is 13 inches long. If a second similar polygon has an area of 36 square inches, what is the length of the corresponding side in the second polygon?

OpenStudy (amistre64):

assume we have sqaures; a 10x10 is 100 squares a 6x6 is 36 squares but a polygon is pretty general

OpenStudy (amistre64):

|dw:1342975773192:dw| such that the area added up = 100 hmm that would at least tell us the shape of the poly eh

OpenStudy (amistre64):

how easy is the question spose to be? lol

OpenStudy (ledah):

Not sure I'm terrible with trying to figure out stuff like this

OpenStudy (amistre64):

13*13 = 169 so it aint gonna be a square to stat with; maybe it is a triangle after all

OpenStudy (ledah):

True. I see what you mean

OpenStudy (anonymous):

Amistre, I cant do math early in the morning lmao

OpenStudy (ledah):

IT is early right? xD

OpenStudy (anonymous):

lol ok then

OpenStudy (anonymous):

I believe the key to see here is that you can break up the polygon into a bunch of triangles who, iirc, are equal lateral (all angles are the same - 60 deg). Finding the area of one triangle would be easy knowing that.

OpenStudy (amistre64):

13sin60 * 13 / 2 = 73.1791466 which would be an equi tri of side lengths 13

OpenStudy (amistre64):

so maybe its a 3 and a half sided poly?

OpenStudy (ledah):

|dw:1342976194404:dw|

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