Similar figures: ratio of areas is the square of the ratio of sides (or perimeters, altitudes)

1. A.
   14:25
2. B.
   13:20
3. C.
   14:20
4. D.
   13:25

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1. A.
   15 cm
2. B.
   10 cm
3. C.
   25 cm
4. D.
   16 cm

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1. A.
   35 :49
2. B.
   15 :49
3. C.
   25 :49
4. D.
   36 :49

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1. A.
   12 : 5
2. B.
   5 : 12
3. C.
   25 : 12
4. D.
   5 : 144

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1. A.
   3:5
2. B.
   5:3
3. C.
   9:25
4. D.
   25:9

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1. A.
   $2 : 5$
2. B.
   $4 : 25$
3. C.
   $2 : 25$
4. D.
   $5 : 2$

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1. A.
   1.5
2. B.
   2.4
3. C.
   3
4. D.
   6

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1. A.
   $32\ \text{cm}^2$
2. B.
   $48\ \text{cm}^2$
3. C.
   $64\ \text{cm}^2$
4. D.
   $80\ \text{cm}^2$

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1. A.
   9 $\text{cm}^2$
2. B.
   15 $\text{cm}^2$
3. C.
   25 $\text{cm}^2$
4. D.
   35 $\text{cm}^2$

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1. A.
   $30\ \text{cm}^2$
2. B.
   $90\ \text{cm}^2$
3. C.
   $160\ \text{cm}^2$
4. D.
   $270\ \text{cm}^2$

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1. A.
   $147 \text{ cm}^2$
2. B.
   $125 \text{ cm}^2$
3. C.
   $130 \text{ cm}^2$
4. D.
   $159 \text{ cm}^2$

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