Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

## #1 2013-04-02 03:00:19

cooljackiec
Full Member

Offline

### 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

## #2 2013-04-02 03:04:07

anonimnystefy
Real Member

Offline

### Re: similar triangles?

I would say 18.

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

## #3 2013-04-02 03:13:07

cooljackiec
Full Member

Offline

### 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

## #4 2013-04-02 03:16:57

anonimnystefy
Real Member

Offline

### Re: similar triangles?

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

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

## #5 2013-04-02 03:19:35

cooljackiec
Full Member

Offline

### 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

## #6 2013-04-02 04:08:22

anonimnystefy
Real Member

Offline

### Re: similar triangles?

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

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment