Matematika Sekolah Menengah Pertama =====tolong jawab dengan benar​

josiannesporerulv – June 06, 2023

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tolong jawab dengan benar​

Jawaban:

1. LP = 2 × (p×l + p×t + l×t).

2 × ( 10 × 7 + 10 × 5 + 7 × 5 )

2 × ( 70 + 50 + 35 )

2 × 155

= 310 Cm

2. LP = 2 × (p×l + p×t + l×t).

2 × ( 7×4 + 7×2 + 4×2 )

2 × ( 28 + 14 + 8 )

2 × 50

= 100

3. LP = 2 × (p×l + p×t + l×t).

2 × ( 30×14 + 30×10 + 14×10 )

2 × ( 420 + 300 + 140 )

2 × 860

= 1720

4. LP = 2 × (p×l + p×t + l×t).

2 × ( 12×6 + 12×4 + 6×4 )

2 × ( 72 + 48 + 24 )

2 × 144

= 288

5. LP = 2 × (p×l + p×t + l×t).

2 × ( 125×80 + 125×40 + 80×40 )

2 × ( 10.000 + 5000 + 3200 )

2 × 18.200

= 36.400