Jawapan

2016-08-02T21:30:51+08:00
1)perimeter bulatan=2nj
=2x22/7x6
=37/5/7cm
perimeter separuh=1/2nj
=1/2 x 22/7 x ( 8 + 6)
=22
or = 22/7 x 14 = 44 ( pilihlah satu sbb saya tak sure tapi mcm yg darab dgn 1/2)
perimeter seluruh rajah = 37/5/7+22=59/5/7
Oooo
Bru ingat
Ok thank
salah..mcm ni_360-90-60=210
210/360x22/7x6²=66 150/22/7x14²=256/2/3 90/360x22/7x14²=154 luas berlorek=256/2/3-154+66=168/2/3