Question

Please help me with this one!

Answer 1

3.1 feet

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=
`√(2.45)`

b≈1.56524758

x≈1.56524758×2

≈3.13049517

≈3.1 ft