Question

Help pls i need this luv you guys ,<333

Answer 1

x ≈ 3.1 ft

Explanation:

The segment from the centre to the chord is a perpendicular bisector, thus

The triangle is right with base =
`(1)/(2)` x

Applying Pythagoras' identity to the right triangle, then

(
`(1)/(2)` x )² + 1.4² = 2.1²

`(1)/(4)` x² + 1.96 = 4.41 ( subtract 1.96 from both sides )

`(1)/(4)` x² = 2.45 ( multiply both sides by 4 )

x² = 9.8 ( take the square root of both sides )

x =
`√(9.8)` ≈ 3.1 ft ( to the nearest tenth )