AC Lim's answer to tiffany's Secondary 1 Maths Singapore question.
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a. 4cm…3km
6cm = 6÷4×3 = 4.5km
b. 3km… 4cm
18km = 18÷3 × 4 =24cm
c. 3km… 4cm
(3km)² = (4km)²
9km² = 16cm²
Therefore,
16.2 km²
= 16.2÷9 × 16
= 28.8cm²
d. 4cm…3km
4cm: 300000cm
1cm : 75000cm
1 : 75000
Hope this helps
6cm = 6÷4×3 = 4.5km
b. 3km… 4cm
18km = 18÷3 × 4 =24cm
c. 3km… 4cm
(3km)² = (4km)²
9km² = 16cm²
Therefore,
16.2 km²
= 16.2÷9 × 16
= 28.8cm²
d. 4cm…3km
4cm: 300000cm
1cm : 75000cm
1 : 75000
Hope this helps
Date Posted:
4 years ago
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