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A polygon has an area of 100 square inches and one of its sides is 20 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? 5 in 8 2/3 in 12 in 33 1/3 in

Mathematics
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ok so, I believe you need to st up a proportion
can u help me please

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Other answers:

ok I am trying to..
so you know the areas of each polygon, right?
36?
and what?
100?
yes, good :)
so what now ?
|dw:1358803903084:dw|
solve for x
do you need help? Because I am trying to help you.
Not one of the choices.
yes please help
did you see the drawing?
?
yes i saw it..
try solving for x
100x = 36*20?
yup.
720 = 100x
then i divided and i got 7.2 but thats not one of the option choices..
|dw:1358804299965:dw|
oh yeah, what the heck?
Sorry but the ratio of the sides squared would be the ratio of the areas. And so the square root of the ratio of the areas would be the ratio of the sides.
huh?
So if the ratio of the areas is 36/100, the ratio of the sides is 6/10
7.2 is not an option for the answer.. answer options r .. 5 in. 8 2/3 in 12 in and 33 1/3 in
@Mertsj you can help @rebecca1233 now... I guess you are better at this than I am
6/10=x/20 Solve that if you want the answer.
so 6x= 10*20?
help me ?
hello @Mertsj
\[\frac{6}{10}=\frac{x}{20}\]
Can you solve that proportion?
so 6 *20
hen divie by 1 which gives u 12
12 in is correct answer right?
yes
i need help with another problem please
Post it. Someone will reply.

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