Jawaban:
121 cm dan 90 cm
Penjelasan dengan langkah-langkah:
Keliling bangun kiri
K = 7 + 9 + (19-7) + 9 + 5 + 5 + (9+6) + 19 + 9 + 7 + (9+6+9)
K = 7 + 9 + 12 + 9 + 5 + 5 + 15 + 19 + 9 + 7 + 24
K = 121 cm
keliling Bangun kanan
panjang sisi miring = akar (12 kuadrat + 9 kuadrat)
panjang sisi miring = akar ( 144 + 81)
panjang sisi miring = akar 225
panjang sisi miring = 15 cm
K = 11 + 15 + 25 + 12 + 16 + 11
K = 90 cm
K = Jumlah semua sisi
K = 24 + 7 + 7 + 9 + 9 + 9 + 19 + 15 + 5 + 5
K = 24 + (2 × 7) + (3 × 9) + 19 + 15 + (2 × 5)
K = 24 + 14 + 27 + 19 + 15 + 10
K = 38 + 46 + 25
K = 84 + 25
K = 16 + 12 + 25 + 15 + 11 + 11
K = 28 + 40 + 22
K = 68 + 22
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Jawaban:
121 cm dan 90 cm
Penjelasan dengan langkah-langkah:
Keliling bangun kiri
K = 7 + 9 + (19-7) + 9 + 5 + 5 + (9+6) + 19 + 9 + 7 + (9+6+9)
K = 7 + 9 + 12 + 9 + 5 + 5 + 15 + 19 + 9 + 7 + 24
K = 121 cm
keliling Bangun kanan
panjang sisi miring = akar (12 kuadrat + 9 kuadrat)
panjang sisi miring = akar ( 144 + 81)
panjang sisi miring = akar 225
panjang sisi miring = 15 cm
K = 11 + 15 + 25 + 12 + 16 + 11
K = 90 cm
Bangun 1
K = Jumlah semua sisi
K = 24 + 7 + 7 + 9 + 9 + 9 + 19 + 15 + 5 + 5
K = 24 + (2 × 7) + (3 × 9) + 19 + 15 + (2 × 5)
K = 24 + 14 + 27 + 19 + 15 + 10
K = 38 + 46 + 25
K = 84 + 25
K = 109 cm
Bangun 2
K = Jumlah semua sisi
K = 16 + 12 + 25 + 15 + 11 + 11
K = 28 + 40 + 22
K = 68 + 22
K = 90 cm