2. 8/12=10/AB , AB = 15cm
CE=2×6=12cm
3. AC= 100×64=akar6400=80cm
AB= 100×36=akar3600=60cm
AD= 36×64=akar2304=48cm
Luas = 1/2×100×48=2400cm2
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2. 8/12=10/AB , AB = 15cm
CE=2×6=12cm
3. AC= 100×64=akar6400=80cm
AB= 100×36=akar3600=60cm
AD= 36×64=akar2304=48cm
Luas = 1/2×100×48=2400cm2