Question

Which is the shorter path from A to B, round the 2 smaller semi-circles or around the large semi-circle

Answer 1

Answer:

The path length is the same for the small and large semicircles.

Step-by-step explanation:

The distance around the large semicircle = 1/2 * π * diameter

=  1/2*8*π

= 4π m.

The distance around the 2 smaller semicircles

= 1/2 * 4 * π + 1/2 * 4 * π

=  2π + 2π

= 4π m.