how many plants will be there in a circular bed whose outer edge measure 32 cms , allowing 4 cm 2 for each plant ?
"circumference of circular bed = 32 cm area of circular bed = ( 32 ) 2 â  „ 4 ï € space for each plant = 4 cm 2 â ˆ ´ required number of plants = ( 32 ) 2 â  „ 4 ï € ã · 4 = 20.36 = 20 ( approx ) answer d"
divide(circle_area(divide(32, multiply(2, const_pi))), 4)