To solve the problem of identifying the coordinates of each dot on the map, we need to determine the latitude and longitude for each labeled point. Let's go through each point step by step:
Key Notes:
1.
Latitude:
- Ranges from 0° at the Equator to 90°N at the North Pole and 90°S at the South Pole.
- Lines of latitude are horizontal (parallel to the Equator).
2.
Longitude:
- Ranges from 0° at the Prime Meridian (Greenwich Meridian) to 180°E and 180°W.
- Lines of longitude are vertical (converging at the poles).
3.
Reading Coordinates:
- Latitude is read first, followed by longitude.
- Format: (Latitude, Longitude)
Step-by-Step Solution:
#### Point A:
-
Latitude: Approximately 20°S
-
Longitude: Approximately 40°W
-
Coordinates: (20°S, 40°W)
#### Point B:
-
Latitude: Approximately 60°N
-
Longitude: Approximately 30°E
-
Coordinates: (60°N, 30°E)
#### Point C:
-
Latitude: Approximately 0° (Equator)
-
Longitude: Approximately 20°E
-
Coordinates: (0°, 20°E)
#### Point D:
-
Latitude: Approximately 50°N
-
Longitude: Approximately 70°W
-
Coordinates: (50°N, 70°W)
#### Point E:
-
Latitude: Approximately 40°N
-
Longitude: Approximately 140°E
-
Coordinates: (40°N, 140°E)
#### Point F:
-
Latitude: Approximately 20°N
-
Longitude: Approximately 80°E
-
Coordinates: (20°N, 80°E)
#### Point G:
-
Latitude: Approximately 0° (Equator)
-
Longitude: Approximately 10°W
-
Coordinates: (0°, 10°W)
#### Point H:
-
Latitude: Approximately 40°N
-
Longitude: Approximately 100°W
-
Coordinates: (40°N, 100°W)
#### Point I:
-
Latitude: Approximately 15°S
-
Longitude: Approximately 120°E
-
Coordinates: (15°S, 120°E)
#### Point J:
-
Latitude: Approximately 10°N
-
Longitude: Approximately 100°E
-
Coordinates: (10°N, 100°E)
Final Answer:
\[
\boxed{
\begin{array}{ll}
A & (20^\circ S, 40^\circ W) \\
B & (60^\circ N, 30^\circ E) \\
C & (0^\circ, 20^\circ E) \\
D & (50^\circ N, 70^\circ W) \\
E & (40^\circ N, 140^\circ E) \\
F & (20^\circ N, 80^\circ E) \\
G & (0^\circ, 10^\circ W) \\
H & (40^\circ N, 100^\circ W) \\
I & (15^\circ S, 120^\circ E) \\
J & (10^\circ N, 100^\circ E) \\
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of longitude and latitude worksheet for 4th grade.