tolong bantu jawabin dong sekarang ya
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A. 60 cm²
Penjelasan dengan langkah-langkah:
BC² = OC² - BO²
= 13² - 5²
= 169 - 25
= 144
BC = √144 = 12 cm
L.OACB = 2 x L.OBC
= 2 x 1/2 x OB x BC
= 2 x 1/2 x 5 x 12
= 60 cm²