distance between two cities? _____
Answers
Distance between cities or 2 locations are measured in both kilometers, miles and nautical miles at the same time. Air distance is the bird fly distance between two locations which is calculated with the great circle formula. nmi: is the symbol of nautical miles in distance calculation.
I hope it's helpful dear........
Step-by-step explanation:
Let D= the actual distance in kilometers (km) between any two locations, and let d= the corresponding measured distance on a map in centimeters (cm) between the same two locations.
Since the scale on a map is 1 cm =45 km, then the ratio of the distance on the map to the actual distance is equal to
45 km
1 cm
; ∴ the quotient of any measured distance d on the map divided by the corresponding much longer actual distance D would have to maintain (equal) this same ratio; In other words, we can set up the following proportion to solve for the actual distance D between two cities given the measured map distance d=4.5 cm between them as follows:
45 km
1 cm
=
D
d
Substituting, we get:
45 km
1 cm
=4.5
D
cm
Cross-multiplying, we get:
D(1 cm)=(4.5 cm)(45 km)
(1 cm)
D(1 cm)
=
(1 cm)
[(4.5 cm)(45 km)]
D=202.5km is the actual distance between the two cities.