Question

Joel is walking down a street and sees a 115 ft tall building in front of him. He stops 190 feet from the base of the building at the tip of the building's shadow. Round answers to three decimal places.

A. If there was a piece of rope from the top of the building to Joel, how long would it be?
B. What is the angle of elevation from Joel to the top of the building?
C. Margaret says that she could find the angle of depression from the top of the building to Joel by subtracting the angle of elevation from 90°. Is she correct? Explain.

Answer 1

Welcome to Openstudy!

Joel is answering your question... Not walking down the street so that answer to the question is impossible to find...
Just kidding. :)

Ok lets start with A, what do you need to answer the question? What measurements do you need to find ?

Answer 2

If there was a piece of rope from the top of the building to Joel, how long would it be?

Answer 3

Well it does say, "190 feet from the base of the building at the tip of the building's shadow. Round answers to three decimal places." So how can you apply this to a?

Answer 4

Well since the height of the building is 115 ft, it would only reach to ground. I am standing 190 ft away and shadows are casted at an angle. So a rope of 190 ft going at a certain angle would reach me, because the angle of the shadow of the rope would be similar to that of the tower.

Do you get it? :)

Answer 5

no

Answer 6

@TheSmartOne and @pooja195 are most likely better helpers. Im a history guy. My explanations are pointless and confusing here. xD

Answer 7

This seems more of a physics question im not sure maybe @Zarkon or @phi know this

Answer 8

Determine the cosine of ∠B.












A)

12
13




B)

12
5

Eliminate


C)

5
12




D)

5
13

Answer 9

\(\color{blue}{\text{Originally Posted by}}\) @femaleballer1512
Determine the cosine of ∠B.












A)

12
13




B)

12
5

Eliminate


C)

5
12




D)

5
13
\(\color{blue}{\text{End of Quote}}\)

Copy-paste error.
And we need the picture to solve the question.