Jawabanmu

2014-06-12T19:42:06+07:00
2×L segitiga atau  2 × 1/2 × p× l
2014-06-12T19:42:14+07:00
26 kuadrat= 676
10 kuadrat= 100
AB2= OB2-OA2
= 676 - 100
= 576
= 24 cm.