Please help me with this

Height of the tree is 87 ft
Step-by-step explanation:
Angle = 44°, adjacent side = 90 ft
⇒ tan 44° = opposite side/adjacent side
∴ Opposite Side = adjacent side × tan 44°
= 90 × 0.97
= 86.91 ft ≈ 87 ft
⇒ Height of the tree is 87 ft