Challenge! Ready? The students in Mr. Collin’s class used a surveyor’s measuring device to find the angle from their location to the top of a building. They also measured their distance from the bottom of the building. The diagram shows the angle measure and the distance. To the nearest foot, find the height of the building.

- anonymous

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Frank?

- anonymous

Hey my bad
I am trying to figure it out. Just that I am in Geometry but I have not come across questions like these

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## More answers

- anonymous

I see.

- anonymous

yea. I am not sure how to solve it. They give you the angles of the triangle

- anonymous

challenge? no
cheating cause i just did this on my test? Confirmed

- anonymous

GUYS LETS SOLVE THIS TOGETHER

- anonymous

Ice dragon you seem to know what you are doing m8

- anonymous

okie lol

- anonymous

There we go teamwork

- anonymous

So what should we try to figure out first lel

- anonymous

so mate first of all wits the sine like they taught u in tha book

- anonymous

hint: opposite over hypotenuse

- anonymous

SohCahToa

- anonymous

But m8 they don't give you a side lenght

- anonymous

length*

- anonymous

M8 are you there?

- anonymous

so is 100 opposite hypotenuse or adjacent

- anonymous

adjacent no?

- anonymous

wait srry this is tan

- anonymous

let the height = x
then tan72 = x /100
x = 100 tan 72

- anonymous

let me get my handy dandy notebook

- anonymous

okie

- anonymous

so whats next

- anonymous

you gotta know what sine, cosine, and tangent equal

- anonymous

Square root of 3 no?

- anonymous

so if you plug this into a graphing calculator you get: 308

- anonymous

#nocalculator

- anonymous

remember you have to set the 72 to degrees

- anonymous

I am sorry m8 I literally learned this 2 days ago. Just trying to help as much as I can

- anonymous

aww he left

- anonymous

lollygirl do you get the steps we talked about in the discussion?

- anonymous

Yes. You guys are doing it correct so far.

- anonymous

I get confused with these at times

- anonymous

It's cool. Some one else will come.

- anonymous

Yea my bad about this. Glad I helped

- anonymous

Oh wait can it be hes back online

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