❖ Trigonometry Word Problem, Finding The Height of a Building, Example 1 ❖

In this video we look at finding the height of a building by using trigonometry.
We are given some angles from the ground to the top of the building as well as the horizontal distance between those two angles.

#math #algebra #khanacademy #khan #geometry #education #montessori #homeschooling #functions #notation #organicchemistry #organicchemistrytutor #calculus #trigonometry #sineandcosine #angle #height

[patrickjmt]

@Schazaa i agree, law of sines is easier. but i am trying to make a trig playlist, and i have not covered law of sines yet. the point is, you can do it in a 'more basic' way : )

[gustavoskater]

I like this longer version because you get more points when showing more work where I'm from thanks

[xyreezjayjungco]

thank you so much .. I was in the verge of crying because of my homework but thanks to you I got to solve it on my own thank you so much

[HolySoliDeoGloria]

Just use tangents and algebra to get the general expression h = (distance between the points * tan a * tan b) / (tan a – tan b), where a and b are the angles. To use and learn trig properly, you shouldn't be getting the numerical results until the final calculation. (The law of sines also makes for a bit of a quicker way through the algebra.)

[NintendoGamesPro]

I'm in school and have to learn this, but my teacher is horrible at explanations.
You really saved me here, thank you!

[TheEmilyxx]

If this one problem takes 7 minutes then I'm gonna be doing this worksheet for a year

[williamlakra]

why did u divide there .425 i did not get

[davemagaldadze]

You've been helping me in maths for last two years)) thank you so much Patrick: :)

[livengoodjames]

The way you did this was bewildering. It's much easier and efficient to figure out the angles of the left triangle, use the law of Sines to determine the hypotenuse, then finally use sine(15)=height/ hypotenuse as your final equation. I'm guessing that you also get a more accurate answer that way. I got 25.20m as my final answer.

[alexandromaldonado]

thanks so much man, it really helped me. Even when I did not know the value of the base of the triangle, I only new that the second base was x-250ft.

Thanks!!!

[matts]

Most helpful vid on the topic right here. My class won't teach this variant of the problem yet tests it. Go figure. Thanks internet man :)

[gabrielgalvez]

You helped me with my Video Output, Aids is cringe

[amjPeace]

Call me a math nerd, but I love this stuff!
Thanks for sharing!

[KIKI_FFCIAL]

thankyou so much, this video has helped me to complete my assignments.

[ulasruzgar]

If your from C&I college and Mustafa gave a similar question to this, props to you

[harrisonmosey]

thankyou so much. this helps so much, thankyou

[bbytt]

Patrick am confused where did you get the 425 from? ….. this is so hard worst am stuck in he quarantine doing maths graded work... which is hard grade is killing

[moth]

You could use plane geometry instead of using long trigonometry with lot of computations

[phredomlight]

You can use the law of sines a total of 2 times to solve this problem much faster.

[xxGATEZxx]

you can do that problem in about 30 seconds just using sine law