Jawabanmu

2014-04-28T15:09:11+07:00
AP² = OP² - OA²
AP² = 10² - 6²
AP² = 100-64
AP² = 36
AP = 6

Luas layang layang OAPB = 2.ΔOAP
Luas layang layang OAPB = 2.(1/2.a.t)
Luas layang layang OAPB = 2.(1/2.6.6)
Luas layang layang OAPB = 2.18
Luas layang layang OAPB = 36

luas layang layang OAPB = 1/2.AB.OP
36 = 1/2.AB.10
36 = 5.AB
AB = 36/5
AB = 7.2 cm