Question

What’s the question mark?

Answer 1

? ≈ 5.01

Explanation:

using the sine ratio in the right triangle

sin24.3° =
`(opposite)/(hypotenuse)` =
`(2.06)/(?)` ( multiply both sides by ? )

? × sin24.3° = 2.06 ( divide both sides by 24.3° )

? =
`(2.06)/(sin24.3)` ≈ 5.01 ( to 3 significant figures )