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NNADVOKAT [17]
3 years ago
7

Help please.

Mathematics
1 answer:
Bumek [7]3 years ago
4 0

Answer:

20 cm² & 80 cm²

Step-by-step explanation:

Ratio of areas = (ratio of sides)²

Ratio of sides: 2/4 = ½

Ratio of areas: (½)² = ¼

Areas are:

⅕(100) = 20

⅘(100) = 80

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