Point A is 10 km west of point B. Point B is 30 km north of point C. Point C is 20 km east of point D. What is the distance between points A and D?
A 10√20 km
B 10√10 km
C 20√10 km
D 30√10 km
Solution
Correct Answer: Option B

এখানে,
AD = √(30
2 + 10
2)
= √1000
= 10√10 km