Do you know works in a building that is 130 feet tall. She's outside, looking up at the building at an angle of 37° from her feet to the top of the building.

17.6 feet

Step-by-step explanation:

If Diana walks forward and her angle looking to the top of the building changes to 40°, how much closer is she to the building? Round the answer to the nearest tenth of a foot.

Let x be the distance between the building and Diana,

Tan theta = opposite / adjacent side

then tan 37 = 130/x

Let y be  distance between the building and Diana after moving forward,

now find the distance by subtracting to find how much closer she is to the building

5 pm

step-by-step explanation: