Jawapan

2016-09-22T17:01:13+08:00
B:cari perimter
PQ+QR+RS+SP=PNJG DAWAI
50+50+126.5+126.5
=353cm
THAT'S RIGHT?
2016-09-23T16:26:25+08:00
Length of wire = PQ+QR+RS+SP

PQ=QR=√(40²+30²)=50cm
RS=SP=√(120²+40²)=126.5cm

Length of wire = PQ+QR+RS+SP = 50+50+126.5+126.5 = 353cm