Penjelasan dengan langkah-langkah:
no 5. rumus k= sama dengan k=2(p+l) k=2(15+20)
k=35.2 k=70cm
no 6.l=1/2×a×t l =1/2×20×15 =150÷10 = 15 cm
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Penjelasan dengan langkah-langkah:
no 5. rumus k= sama dengan k=2(p+l) k=2(15+20)
k=35.2 k=70cm
no 6.l=1/2×a×t l =1/2×20×15 =150÷10 = 15 cm