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3 years ago

Find the length of each side of the polygon for the given perimeter

Mathematics

1 answer:

butalik [34]3 years ago

8 0

Answer:

choice number 2) 10 in, 18.5 in 31.5 in

Step-by-step explanation:

we collect and evaluate the like terms.like terms means the ones that can be evaluated. like 2y and 7y are like terms. they either can be added or subtracted to get an answer . 7y-2y =5y. but you cant subtrac or add 7y with 5 because they are not like terms.

2y +1 + 7y + 3y + 5 = 60

(2y+7y+3y)+(1+5) = 60

12y + 6 = 60

The 6 crosses the equal sign to the other side because of like terms.And becomes a minus

12y = 60 - 6

12y = 54

y = 4.5

so,

2y +1= 2 x 4.5 + 1 =10

7y = 7 x 4.5 = 31.5

3y + 5= 3 x 4.5 + 5 =18.5

Answer is 10 in, 18.5 in, 31.5 in

If you need any clarification or more explanation pls do mention at the comment section so that i can help more thx

Hope this helps and if it does pls mark as branliest answer thx

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Thus the height of the entire triangle is 23.56 which also happens to be one of the legs of the Second triangle

$a^2+b^2=c^2\\a^2+(23.56)^2=42^2\\a^2 = 1764-555=1209\\a = 34.77$

Having found the other leg of the Second Triangle, we can find the base of the larger triangle is:

--> 34.77 + 11 = 45.77

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Area = $\frac{1}{2}*b*h=\frac{1}{2}*23.56*45.77=539.17$

Hope that helps!

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2 years ago

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Lyrx [107]

Answer:

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Answer:

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Step-by-step explanation:

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