Jawapan

2016-09-28T17:46:04+08:00
OT=14cm, π=22/7
P=midpoint of OJ
OQRT=square, therefore OT=OP=PJ=OQ=KQ=QR=RT=14cm

i) perimeter whole diagram
=KQ+QR+RT+OT+OP+PJ+JK
=(6×14)+(2×60/360×22/7×28)
=340/3 cm = 113.33cm

ii) area of shaded region
=OQRT+PJKQ
=(14×14)+[(60/360×22/7×28²)-(60/360×22/7×14²)]
=597.33cm²