Mr. Khan, I was wondering whether the first question would have one answer or many, because the in the case of the Law of Sines, you could possibly have two supplementary angles which would have the same sine value but different angle measures.
Answer B is the only possible answer to problem 15. SSA is not sufficient to prove similarity. The Law of Cosines does not apply to the given information. In Kahn's drawing it is true that there is only one possibility for the third side because AB is drawn larger than BC, etc. However, if AB is drawn shorter than side BC then there are two possibilities. The Law of Sines could be used to determine the two options.
On problem 15, I think the test answer is only correct. There is the "ambiguous case" with acute angles that excludes SSA for proving congruence. The shorter leg can swing in at the same length to create an obtuse triangle.
Mr. Khan, I was wondering whether the first question would have one answer or many, because the in the case of the Law of Sines, you could possibly have two supplementary angles which would have the same sine value but different angle measures.
TheMRCUB 8 months ago
Sorry for the wrong spelling Salman Khan. I love your videos, and I have watched a ton of them on many subjects. Keep up the good work!
konopong 8 months ago
Answer B is the only possible answer to problem 15. SSA is not sufficient to prove similarity. The Law of Cosines does not apply to the given information. In Kahn's drawing it is true that there is only one possibility for the third side because AB is drawn larger than BC, etc. However, if AB is drawn shorter than side BC then there are two possibilities. The Law of Sines could be used to determine the two options.
konopong 8 months ago
The only "technical" geometric theory is B, right?
AVVIVable 1 year ago
you skipped what would be 12 on my copy of the est so all the #s are off by one
Thumbelina888 1 year ago
And Thank You these videos are alot of help
Thumbelina888 1 year ago
On problem 15, I think the test answer is only correct. There is the "ambiguous case" with acute angles that excludes SSA for proving congruence. The shorter leg can swing in at the same length to create an obtuse triangle.
redbeehive 2 years ago
i agree
xSpecialJayx 2 years ago
Thank you gor your time. I found all of your work very helpful please keep it up!!!
beechdr 3 years ago