Answer:
You didn't specified that it was a right angled triangle or an Equilateral triangle,That's why I have created one as per an Equilateral triangle..........
Step-by-step explanation:
In this triangle QR=6.5 and PR=7.8..
So It's the right triangle if this is an  Equilateral triangle and which doesn't have the specified value of PQ..That's why I have taken a random value of PQ..
