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telo118 [61]
3 years ago
5

Heellppppppp pLLSsssssssssss

Mathematics
2 answers:
faust18 [17]3 years ago
7 0

Answer:

A 12

Step-by-step explanation:

We can use the pythagorean theorem to find the length a

a^2 + b^2 = c^2

a^2 + (4sqrt(3))^2 = (8sqrt(3))^2

a^2 +16*3 = 64*3

a^2 +48 = 192

Subtract 48 from each side

a^2 +48-48 = 192-48

a^2 =144

Taking the square root of each side

sqrt(a^2) = sqrt(144)

a = 12

We only take the positive square root because length must be positive


Nonamiya [84]3 years ago
3 0
It is b I'm pretty sure
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Answer:

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Step-by-step explanation:

The first thing that you need to do is find the area of triangle AFE. The area of a triangle is always base*height/2. So in this case, that would be 10*6 divided by 2, which is 30 cm. Next, you will need to know the area of triangle ECB. Using that same formula, you will get 8*10/2, which is 40 cm. Finally, you will need to find the area of the whole rectangle. The area of a rectangle is always the length times the width. In this case, you would have 10*18, which is 180 cm. To get your final answer, you need to subtract the areas of the unshaded area from the whole area. That would be 180-(30+40), which is 110 cm. I hope this helped!

6 0
2 years ago
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zlopas [31]

Answer:

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8 0
3 years ago
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nata0808 [166]

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3 years ago
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