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  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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Topic review (newest first)

anonimnystefy
2013-04-02 04:08:22

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

cooljackiec
2013-04-02 03:19:35

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.

anonimnystefy
2013-04-02 03:16:57

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

cooljackiec
2013-04-02 03:13:07

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 ?

anonimnystefy
2013-04-02 03:04:07

I would say 18.

cooljackiec
2013-04-02 03:00:19

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?

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