Gabriella built a toy box in the shape of a rectangular prism with an open top. The diagram below shows the toy box and a net of the toy box.

4th option is correct xy=-10

if this was to u plzz mark me the brainliest

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.