Question

In ∆PQR,PQ=4cm and QR=6cm.What can be the length of third side PR?

Answer 1

Keep in mind

Sum of two sides of triangle must be greater than third side.

1. PQ + QR > PR

4 + 6> PR

PR< 10 cm

2. PQ +PR > QR

4 + PR > 6

PR >6-4

PR>2 cm

3. QR +PR > PQ

6 + P R> 4 →→No, Possible value of PR.

So, Value of PR should be , 2 cm< PR < 10 cm