Question

Find the value of x.

Answer 1

Answer:

b

Step-by-step explanation:

because

Answer 2

Answer:

A

Step-by-step explanation:

Using the altitude- on- hypotenuse theorem

(leg of big Δ )² = (part of hypotenuse below it ) × ( whole hypotenuse) , so

x² = 4 × (4 + 8) = 4 × 12 = 48 ( take square root of both sides )

x = $\sqrt{48}$ = $\sqrt{16(3)}$ = 4$\sqrt{3}$ → A