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anonymous
 one year ago
Given that Y is the centroid of triangle STU, find, find x.
anonymous
 one year ago
Given that Y is the centroid of triangle STU, find, find x.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1434593162132:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0answer selection A. 4 B. 10 C. 15 D. 30

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got A 2x3=9 subytract 3 from both sides, then subtract 2. which gives me 4

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0You are assuming that the triangle is isosceles, which is not given!

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0You may want to use the properties of centroid to add a few more dimensions to the triangle. Can you do that?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0Medians divide a side into two equal parts!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0by working the problem out could it be any of the other answer selections

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0Actually, I don't find enough information to solve the problem, but find enough information to eliminate the other choices! dw:1434595091396:dw

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0Well, the only recourse I see is that in any triangle, the sum of the two shorter sides must exceed the longest side. Try that with the different options on triangle STX and see if you can eliminate some choices.

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0Example: St=18, XT=15 For case x=4, 2x3=11 Since 11+15>18, x=4 is a possible solution.

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0Can you post the original question as an image?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0There is one theorem we could use, which is the six triangles created by the medians all have equal areas. If we assume mSX=3y, mUV=3z, then we can form 3 equations by equating areas of 4 of the six triangles, thus producing 3 equations to solve for x, (y and z). However, the equation of areas using heron's formula end up quite messy, and will require the use of numerical to solve.
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