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anonymous
 one year ago
The length of the shadow of a building is 100 meters, as shown below:
The shadow of a building is 100 meters long. The acute angle that the shadow makes with the line joining the tip of the building to the end of the shadow measures 45 degrees.
What is the height of the building?
anonymous
 one year ago
The length of the shadow of a building is 100 meters, as shown below: The shadow of a building is 100 meters long. The acute angle that the shadow makes with the line joining the tip of the building to the end of the shadow measures 45 degrees. What is the height of the building?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@dan815 @jim_thompson5910 @zzr0ck3r @HS_CA

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1how far did you get?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1do you have an equation set up?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1441154654870:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1with respect to the 45 degree angle, we can add these labels dw:1441154698897:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1which trig function will we use?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1yes since tan(angle) = opp/adj

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so tan(45) = h/100

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1are you able to isolate h in `tan(45) = h/100` ?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1it might help to evaluate tan(45) first use this calculator http://web2.0calc.com/ to find the value of `tan(45)` and tell me what that is

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so `tan(45) = h/100` is the same as `1 = h/100`

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1this is a 454590 triangle with congruent legs

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0wait is that it? 100 is the answer?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1yeah you multiply both sides of `1 = h/100` by 100 to isolate h, you'll find that h = 100
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