Find the number of birthday caps can be made by the girl — task. Mathematics State Board, Class 10.

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A girl wishes to prepare birthday caps in the form of right circular cones for her birthday party, using a sheet of paper whose area is 15840

$cm^2$ . How many caps can be made with radius 12

$cm$ and height 16

$cm$ ?

Number of caps can be made:

16
14
28
21

$1$

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