ANSWER:
We have to find new side-lengths of PQR triangle.
Original sides are.

After multiplying by 2.5 we get

These are the new sides of the P'Q'R' triangle.
Answer:
1.8inches or 1.83in repeating.
Step-by-step explanation:
divide 11 by 6. you get the decimal 1.83333333. you can either round to 1.8 or do 1.83 with a repeating symbol over the three (small dash above the number).
This is for 2.X=22 so the total angle is 90° and you take away 68° and that leaves you with 22°