#49 Grade A 
revise! 

try a random GCSE question... 
a)
A rectangle has an area of 20 cm^{2}. Its
length and width are enlarged by scale factor 3. Find the
area of the enlarged rectangle. 

b) A cylinder has a radius of 4 cm and volume of 800 cm^{3}. A similar cylinder has a volume of 200 cm^{3}. Find the radius of the smaller cylinder. Give your answer to 1 decimal place. 

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