Question

Please help I don't know how to do this

Answer 1

First fine the dialation divide 6 by 4 you get 1.5 so the dialation of these shapes is 1.5 now you just simply find the measurments.... 9 divided by 1.5 is 6 so BC is 6. now 7*1.5 is 10.5 so QR is 10.5 now the angles never change in a dialation so <P= 86*.
Hope this helped you!!! have an amazing day!

Answer 2

All you do is find the scale factor and go from there so 
AB and side QP are similar so the scale factor is 1.5
In order to find QR just multiply 7*1.5=10.5
Then to find BC you just do just multiply it by 2/3*9=6
The angle is 86 degrees