Answer:
18 ft
Step-by-step explanation:
The triangles are similar so the ratios must be the same
GI IH
--------- = -------------
JL LK
9 12
--------- = -------------
JL 24
Using cross products
9 *24 = JL *12
Divide each side by 12
9*24/12 = JL*12/12
18 = JL
