topscore3 math question

[KEC029]

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this is turning into a dat tutoring section😀

i just don't understand the question, figure, and the answer. can someone explain this to me?

thank you👍

 

[TimeforDAT]

"a" and "b" reprsent the sides opposite of Angles A and B respectively. The solutions merely show the ratio of "a" to sinA making that equal to "b" to sinB. The reason they set up the ratio like that and set it equal is because the angles are proportional to the sides, that is why you equate them like that. hope that helps

 

[Dotoday]

Yes exaclty I agree with timefordat. Also, if you look at the triangle,the opposite side of angle A is the hypotenuse, so you can`t do Soh Cah Toa on this one. The way to do this is to set up a ratio, just like they did because you know the sin of angle B and the side of it, but you do not know angle A.
Hope this helps. Good luck.

 

[Anemone]

this is a pretty straightforward law of sines questions.




with that said, i didnt get it right when i did the topscore math the first time, either😀

 

[KEC029]

oh ic. didn't know what a and b were. so i was thinking sinB is 3/6 what are they talking about...😕

now i get it 😀 THANK YOU!!!
i have DAT tomorrow so wish me luck