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#1 2013-04-01 04:00:19

cooljackiec
Member
Registered: 2012-12-13
Posts: 160

similar triangles?

In ,quadrilateral QRTS we have QR = 11,QS = 9 , and ST=2. Sides RQ and  ST are extended past Q and S , respectively, to meet at point P. If  PS=8 and PQ=5, then what is RT?


I see you have graph paper.
You must be plotting something
lol

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#2 2013-04-01 04:04:07

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 14,860

Re: similar triangles?

I would say 18.


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#3 2013-04-01 04:13:07

cooljackiec
Member
Registered: 2012-12-13
Posts: 160

Re: similar triangles?

thanks! my teacher gives me hard hwk.

In ,

points X and Z are on AB and Y is on AC such that XY||BC and ZY||XC. If AZ=8 and , ZX=4 then what is XB ?


I see you have graph paper.
You must be plotting something
lol

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#4 2013-04-01 04:16:57

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 14,860

Re: similar triangles?

Do you understand why the answer is 18 for the last one?


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#5 2013-04-01 04:19:35

cooljackiec
Member
Registered: 2012-12-13
Posts: 160

Re: similar triangles?

yah i get it. you add some extra lengths to 5 and 8 and then you get similar triangles. i did not see that at first.


I see you have graph paper.
You must be plotting something
lol

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#6 2013-04-01 05:08:22

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 14,860

Re: similar triangles?

Well, for the second problem, I would say the answer is 6.


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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