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Okay question number one this is chapter five review oh when I'm in a crazy pin I know it question number one what is the centroid formula okay sin okay, so I've got triangle ABC drawn the centroid is found or the intersection point of the line that connects the vertices and the midpoint you guys will all know what that means when you get home you'll be like oh that's clear yeah I like that crystal clear mister now that makes sense okay so again connecting the midpoint of the opposite side to the opposite vertex so D is our centroid now centroid formula I want you to tell me hope I need to go further e f g okay I can use the centroid formula on all three of those lines, so I want to look at AE so use the centroid formula with AE and tell me what is a percentage of what go okay so using the centroid formula or finding the centroid for an e somebody talked to me when we're going to have what's my fraction that's in my centroid formula two thirds okay so logically looking at this which one looks like it's two thirds of another one ad okay, so ad is two thirds of what an e the whole thing okay so on your problems tomorrow they're going to give you some numbers maybe they tell you DE is for if DE is for what's a d8 okay so because it would be two thirds of the whole thing which would be 12 let's do let's go ahead and do the other two what would be FB Zach Thomas using bf tell me the centroid formula what do you get BD is two thirds of B if I agree with that and Maddie give me the last one that's going to be CG give me the CG nope you were in the right you were going the right way is two thirds of CG okay, so those are all the centroid formulas how did you list it two thirds i.e. equals ad how did you list it oh, so you just change the letters yeah that's fine it's the same segment it's just you have yeah not a problem that question or was it same question different question okay all right questions on centroid piece cake okay question number two what I want you to do on number two is written an inequality based on the sides that we know okay write an inequality based on the sides that we know, so you have to recall what the triangle inequality is what section was that 5-5 okay so what I see right away is I see the need to label all three angles okay because then I know which side is greater than the other all right this is a hundred forty-five degrees which means this angle has to be what 35 degrees okay and so if this one is 60 and this one is 35 then what does this one have to be 85 again as much as we would like to look at it and say that's a 90-degree angle it may not be labeled that way, so you got to be very careful now we know which side is greater than the other side so which one is greater than okay so here's your inequality two parenthesis X plus six is greater than Y over six now if you are so mathematically inclined, and you can't look at it that way, and you have to do this I'm okay with that I can't leave the parenthesis there Mr....
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