in rectangle PQRS,PQ=15andPR=39. find the perimeter of rectangle PQRS
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angle Q=90
in PQR
PR^2=PQ^2+QR^2
39^2=15^2+qr^2
1521-225=qr^2
36=qr
peri. : 36x15
=540
in PQR
PR^2=PQ^2+QR^2
39^2=15^2+qr^2
1521-225=qr^2
36=qr
peri. : 36x15
=540
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