Answer:
The building is 954.8 feet tall .
Explanation:
Now by using the trignometric identity

As given
jessica is standing 20 feet away from a skyscraper in new york when she measures the angle to the top of the building as 88.8 ° .

Perpendicular = AB
Base = BC = 20 feet
Put all the values in the trignometric identity .


tan 88.8 ° = 47.74 (Approx)
AB = 20 × 47.74
AB = 954.8 feet
Therefore the building is 954.8 feet tall .