Jawapan

2016-09-07T16:27:18+08:00
Lengkok QUS= 90/360×2×22/7×28
                     = 44 cm
lengkok PQS= lengkok QUS

Perimeter kwsn x berlorek= (44+44)cm
                                          = 88 cm
sorry klau salah
its ok thx a lot for helping me to solve this question.
welcome