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Mathematics 12 Online
OpenStudy (hy123):

Two similar trapezoids have areas of 180cmsquared and 48cmsquared. Find the ratio of similarity.

OpenStudy (campbell_st):

find the ratio of areas 180:48.... simplify this ratio... then take the square root of each to give the linear ratio

OpenStudy (hy123):

108:48*

OpenStudy (campbell_st):

ummm is there a type in your question is it 180 or 108..?

OpenStudy (hy123):

yeah typo

OpenStudy (hy123):

2.25:1?

OpenStudy (campbell_st):

ok... so find the common factor in 108:48

OpenStudy (campbell_st):

or just simplify it

OpenStudy (hy123):

So it will be 2.25:1 ?

OpenStudy (hy123):

I'm confused on what the question is asking for.

OpenStudy (campbell_st):

ok... 12 is the largest common factor of 108 and 48 so the ratio simplifies to 9:4 this is the ratio of the areas... to find the ratio of the side lengths... ( linear measurements) take the square root of each

OpenStudy (hy123):

It isn't asking for the linear measurements. Just the ratio of similarity.

OpenStudy (hy123):

Unless that is what ratio of similarity is.

OpenStudy (campbell_st):

the similarity ratio is the ratio of the corresponding sides.... 9:4 is the ratio of areas...

OpenStudy (hy123):

Okay thanks.

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