The diagram shows Yuen's garden.



The garden is in the shape of a semicircle of radius 7.2 m.
Yuen is going to cover his garden with grass seed.

Yuen has 12 boxes of grass seed.
Each box of grass seed contains enough seed to cover
6 m
2
of the garden.

To work out if Yuen enough grass seed for his gardenstate the number of boxes of seed that are required to cover his garden.

Input note: Enter the number to 1 decimal place