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P=4x(25+5r)
=100+20r
Keliling=2P+2L
=2(25+5r)+2(100+20r)
=50+10r+200+40r
=250+50r
Panjang =4x(25+5r)
=100+20r
Keliling =2P+2L
=2(25+5r)+2(100+20r)
=50+10r+200+40r
=250+50r