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24. kan ada 2 bngun datar yaitu prsegi pnjang dan segitiga siku2
l.prsegi pnjang = p.l
= 12.8 =96 cm²
l.Δ = 1 a x t
2
= 1/2 (10-8) × 12
= 1/2 × 24 = 12cm²
jd luas bngun trsbut = 96 + 12 = 108cm²
jawaban = B
itu menurut aku :)