Question

⭐dear users solve this⭐
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Answer 1

Answer:

a) In ️ PQR

PQ+QR>PR

Similarly In ️ PSR

PS+ RS>QS

Adding these equations

PQ+QR+ PS + RS>PR+QD

b)In ️ PQO,PQ+QO>PQ

In ️ SOP,SO+PO>PS

In ️ SOR,SO+OR>RS

In ️ QOR,QO+OR>QR

Adding these

2(PO+OQ+SO+OR)>PQ+QR+RS+SP

PQ+QR+RS+SP<2(PQ+OR+SO+OQ)

PQ+QR+RS+SP<2(PR+SQ)

Answer 2

Answer:

see the above attachment..