Question
in triaangle ABC, AB=20 cm, AC=15 cm the length of the altitude AN is 12 cm prove that ABC is a right triangle
so far i got that angle ANC is 90 degrees by definition on altitude i got really confused after so can you show me how to answer the question and the soulotion please.
so far i got that angle ANC is 90 degrees by definition on altitude i got really confused after so can you show me how to answer the question and the soulotion please.
Answers
Reiny
I will assume that N is on BC.
So you have two right-angled triangles, BNA and CNA.
In BNA, BN^2 = 20^2 - 12^2 , so
BN = 16
in CNA, CN^2 = 15^2 - 12^2
CN = 9
so BC = 25 , and
25^2 = 20^2 + 15^2
so by Pythagoras, we have right angle at A
So you have two right-angled triangles, BNA and CNA.
In BNA, BN^2 = 20^2 - 12^2 , so
BN = 16
in CNA, CN^2 = 15^2 - 12^2
CN = 9
so BC = 25 , and
25^2 = 20^2 + 15^2
so by Pythagoras, we have right angle at A
Anonymous
I think its Pythagorean, but thanks I had the same problem for Rsm homework
Anonymous
same i had it for rsm too
Anonymous
Hi, I have this for RSM too, the answer is the Pythagorean theorem converse. Hope I has helped you guys.
Anonymous
Does anyone have this with a proof?
Anonymous
omg sameee
no one
this website helped none at all. I have RSM as well and this wasn't helpful!
🔥🔥🔥ツツ
yea when we meant proof we meant statement and reason. rsm sucks :(
ur dad
i did it and it says the correct answer was pythagorean theorem converse.
i dont know why
i just guessed
for rsm
i dont know why
i just guessed
for rsm
thx so much
thx so much
e
rsm kinda boring now
Bot
I'm sorry to hear that. Is there anything I can do to help or any other topic you'd like to discuss?
e
does the lim x aproaching infinity diverges when u sum up infinity, x, x?
Bot
No, the series diverges to infinity. This can be proven using the divergence test which states that if the limit of the nth term does not approach zero, then the series diverges.
In this case, the nth term of the series is n+n+n=3n. As n approaches infinity, 3n also approaches infinity and doesn't converge to zero. Therefore, the series diverges to infinity.
In this case, the nth term of the series is n+n+n=3n. As n approaches infinity, 3n also approaches infinity and doesn't converge to zero. Therefore, the series diverges to infinity.
e
Спасибо друг
Bot
Пожалуйста, всегда готов помочь!
e
!!!!
Bot
I hope that answers your question. Let me know if you have any further questions or if there's anything else I can help you with.