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sveta [45]
3 years ago
13

Geometry math question please help

Mathematics
1 answer:
Phoenix [80]3 years ago
7 0
Therefore,DE=4y-8=4*6-8=16
And ,BE=y+10=6+10=16
=>BD=DE+EB=16+16=32
Hope This helps u...!!

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Alex is creating an outdoor structure out of two 12 foot boards. The boards must have an angle of elevation
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Answer:

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Step-by-step explanation:

Given that the structure is to be made using two 12 foot boards, then we expect the total perimeter to be equal to (2*12)= 24 ft.

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Applying the cosine of an angle formula to find the length of the sliding side

Cosine β = adjacent length /hypotenuse

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sliding side length = 8/cosine 40° =10.44 ft

Checking  the perimeter = 10.44 +8+6.71= 25.15 ft

This is more than the total lengths of the boards, so you need to adjust the height as;

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