Answer :

TSO
JK is similar to PQ
KL is similar to QR

Make a proportion

[tex]\sf{ \frac{JK}{PQ} = \frac{KL}{QR} }[/tex]

Plug in the numbers

[tex]\sf{ \frac{36}{6} = \frac{24}{QR} }[/tex]

Cross multiply

[tex]\sf{36\times QR= 6 \times 24}[/tex]

Solve for QR

[tex]\sf{ QR=4}[/tex]

So your final answer is 

[tex]\boxed{\bf{4~centimeters}}[/tex]
I pretty sure it would be 4 centimeters.

Because side JK (I find that really funny) is 36 centimeters, while side PQ is 6 centimeters. I multiplied that by 6, to get 36 and divided 24 by 6 which is 4 centimeters. Hope this helped!