Jawapan

2014-10-10T21:29:13+08:00
First...awk lkis dhulu sudut 60 drjh tu...lps tu...awk bru lkis yg 90 darjah tu...*(klau awk x thu cra nk lkis...u can see at the matematik form 2...lps awkk hbis lkis ...awk ukur lh pnjng lm tu..
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