David has just finished building his treehouse and still needs to buy a ladder to be attached to the ledge of the treehouse and anchored at a point on the ground, as modeled below. David is
standing 1 3 meters from the stilt supporting the treehouse. This is the point on the ground where
he has decided to anchor the ladder. The angle of elevation from his eye level to the bottom of
the trechouse is 56 degrees. David's eye level is 1.5 meters above the ground.
56°
11.5 m
56
1.5 m
1.3 m
43 m
Determine how far off the ground the tree house is, to the nearest tenth of a meter.