Answer:
Crow flew 20.02 miles.
Step-by-step explanation:
A crow flies to a point in the east = 1 miles
Then it flies to a point in the south = 20 miles
Now we have to calculate the distance x between the crow and initial point.
Therefore, distance x = \(\sqrt{(\text{Distance of the crow in the east})^{2}+(\text{Distance of the crow in the south})^{2}}\)
[By Pythagoras theorem]
x = \(\sqrt{1^{2}+(20)^{2}}\)
= \(\sqrt{1+400}\)
= \(\sqrt{401}\)
= 20.02 miles
Crow is 20.02 miles away.
