5. Perhatikan bangun datar di bawah inil 10cm 28cm Luas bangun di atas adalah.... A. 436 cm² 8. 426 cm² C. 416 cm² D. 400 cm² 12cm
jawab plss
jawab plss
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Jawab:
L1 = p x l
= 28 x 12 = 336 cm²
sisi bangun 2 = 28-(10+10)=28-20=8 cm
L2 = S²
= 8² = 64 cm²
L gabungan = 336+64 = 400 cm² (d.)