Answer:
Step-by-step explanation:
As we can see it is a right angled triangle so
hypotenuse (h) = 14 . 7 km
perpendicular (p) = 11.9 km
base (b) = x
Now by using Pythagoras theorem




Hope it was helpful.:)
Answer:
80
Step-by-step explanation:
10 x 1 = 10
10 x 2 = 20
10 x 3 = 30
When you times any single-digit number with 10 just add a zero at the end of the number :)
If you have any more questions about multiplication you can ask me
Hope this helped ya!