Answer: Yes and No
When the longest side is not longer than the sum of the two shorter
Step-by-step explanation:
Let first convert mile to kilometre
1 mile = 1.609km
AB = 0.5mile = 0.8045 km
BC = 1/3 miles = 0.53633 km
DE=0.205 kilometer
EF=0.01 kilometer
AC=1/4 mile = 0.40225
DF=0.02 kilometer
When the longest side is not longer than the sum of the two shorter sides , then a triangle can be made
Let's first consider AB, BC and AC Each set of line segments AB, BC and AC can form a triangle
Also DE, EF and DF
Each set of line segments DE, EF and DF can't form a triangle because the longest side is greater than the sum of the two shorter sides.
