Answer:
2 km
Step-by-step explanation:
hypotenuse (h) = 10.6 km
perpendicular (p) = 10.4 km
base (b) = ?
We know by using Pythagoras theorem
b = √h² - p²
= √ (10.6)² - (10.4) ²
= √ 4.2
= 2 km
Hope it will help :)
