Question

How many circles of a radius 10 will fit vertically stacked in a window that has a height of a 100? The circle should not overlap, the bottom of one circle should not touch the top of the next circle?

A. 10
B. 20
C. 5
D. 100

Answer 1

C.5 circles of a radius 10 will fit vertically stacked in a window that has a height of a 100.