assalamualaikum Kakak tolong bantu saya no 2 saja pakai cara dan proses
Jawabannya sudah tertera di foto ya dek
Penjelasan dengan langkah-langkah:
a. 2×(p×l+p×t+l×t)
= 2×(6×3+6×4+3×4)
= 2×(18+24+12)
= 2×54
=108 cm²
b. 2×(p×l+p×t+l×t)
= 2×(7×2+7×3+2×3)
= 2×(14+21+6)
= 2×41
= 82 cm²
c. 2×(p×l+p×t+l×t)
= 2×(8×4+8×5+4×5)
= 2×(32+40+20)
= 2×92
=184 cm²
d. 2×(p×l+p×t+l×t)
= 2×(8×7+8×2+7×2)
= 2×(56+16+14)
=2×86
=172 cm²
