Question

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Answer 1

Step-by-step explanation:

as given in tri PQR

angle PQR=90°

thus PR =✓(7^2+3^2)

PR=✓(49+9)

=✓58

now for PS=✓(✓58^2-6^2)

PS=✓(58-36)

ps=✓(22)

thus perimeter=7+6+3+✓22

16+✓22

=20.69cm