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21-06-2020
Mathematics

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21-06-2020

Answer:

3.1 feet

Step-by-step explanation:

Use the Pythagorean Theorem to find 0.5x and then multiply it by 2 to find x.

1.4²+b²=2.1²

1.96+b²=4.41

b²=2.45

b=[tex]\sqrt{2.45}[/tex]

b≈1.56524758

x≈1.56524758×2

≈3.13049517

≈3.1 ft

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