Given length of the rectangular field = 48 m
Breadth of the rectangular field = 20 m
Area of the rectangular field = Length x Breadth
= 48 m x 20 m
= 960 m2
Area of one right triangular flower bed = (12 x 5) = 30 m2
Therefore, required number of right triangular flower beds = area of the rectangular field/ area of one right triangular flower bed.
= 960/30
Number of right triangular flower bed = 32