Help please Three checkpoints X, Y, and Z are placed in the ocean to mark a sailboat race. Contestants start at X, sail to

checkpoint Y and Z, and then return to checkpoint X. The location of the checkpoints and the racecourse are

shown below.

2.4 miles

40°

56°

What is the distance between checkpoint X and checkpoint Z to the nearest tenth of a mile?

A

3.1

B

-1.7

ООО

C

1.9

D

-3.4