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Jawaban:

1) S = 1 : 75.

2) S = 1 : 800000.

3) JP; panjang = 6 cm; lebar = 5 cm.

4) JS = 810 m.

5) JS; panjang = 35 m; lebar = 21 m.

Penjelasan dengan langkah-langkah:

1) S = JP ÷ JS

= 8 cm/1 ÷ 6 m/1

= 8/1 × 1/600

= 8/600

= 1 : 75.

2) S = JP ÷ JS

= 4 cm/1 ÷ 32 km/1

= 4/1 × 1/3200000

= 4/3200000

= 1 : 800000.

3) JP = S × JS

– panjang pada denah = 1 : 200 × 12/1 m

= 1/200 × 1200/1

= 1200/200

= 6 cm.

– lebar pada denah = 1 : 200 × 10/1 m

= 1/200 × 1000/1

= 1000/200

= 5 cm.

4) JS = JP ÷ S

= 9 cm/1 ÷ 1 : 9000

= 9/1 × 9000/1

= 81000 cm

= 810 m.

5) JS = JP ÷ S

– panjang sebernarnya = 5 cm/1 ÷ 1 : 700

= 5/1 × 700/1

= 3500 cm

= 35 m.

– lebar sebenarnya = 3 cm/1 ÷ 1 : 700

= 3/1 × 700/1

= 2100 cm

= 21 m.