Similar figures: area scales as the square of side or radius

1. A.
   $10\%$
2. B.
   $19\%$
3. C.
   $18\%$
4. D.
   $15\%$

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1. A.
   $417\ m^2$
2. B.
   $528\ m^2$
3. C.
   $450\ m^2$
4. D.
   $438\ m^2$

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1. A.
   $265\pi\ \text{cm}^2$
2. B.
   $225\pi\ \text{cm}^2$
3. C.
   $215\pi\ \text{cm}^2$
4. D.
   $250\pi\ \text{cm}^2$

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1. A.
   Doubled
2. B.
   Tripled
3. C.
   Quadrupled
4. D.
   Increases 6 times

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1. A.
   $20\%$
2. B.
   $44\%$
3. C.
   $54\%$
4. D.
   $10\%$

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1. A.
   $2 : 3$
2. B.
   $4 : 5$
3. C.
   $1 : \sqrt{2}$
4. D.
   $2 : \sqrt{5}$

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