Question

Please I need help it’s an emergency

Answer 1

A.
`4√(6)`

Explanation:

Applying the leg rule which is:

`(Hypotenuse)/(leg) = (leg)/(part)`

Hypotenuse = 4 + 8 = 12

Leg = x

Part = 8

Plug in the values

`(12)/(x) = (x)/(8)`

Cross multiply

`x*x = 8*12`

`x^2 = 96`

`√(x^2) = √(96)`

`x = √(16 * 6)`

`x = 4√(6)`