Jawapan

2016-09-02T10:18:08+08:00
2016-09-02T10:36:57+08:00
Mcm ni, pkai formula trapzium..

=(1 per 2 darab hasil tmbh 2 sisi selari) + (pnjg darab lebar)

=(1/2(4+7) darab 4) + (10 darab 5)

=22 + 50

=72cm

rasanya mcm tu, try check jwpn.. sorry tau kalau slh..