I need help with the perimeter ASAP! The floor of a small bedroom is made up of 140 square tiles. Each tile measures 20cm on the side.

how large is the floor area of ​​the bedroom?

answer: slight chance that it will happen

step-by-step explanation:

yes

step-by-step explanation:

geometry: triangles

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lessons

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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+

25.45584

2

step-by-step explanation: