Question

Please help!!!?????????

Answer 1

Step-by-step explanation:

This is an acute triangle

Answer 2

2x+5 = 3x+1
-2x -2x
5 = x+1
-1 -1
4 = x

X = 4

PQ: 5(4)-7 = 13
PQ = 13

PR: 2(4)+5
PR = 13

QR: 3(4)+1
QR = 13

Hope this helped you! :)