Interactive practice questions
Great circles contain the diameter of the sphere they're drawn onto, small circles do not.
Determine whether each of the following is a great circle or a small circle.
a
The $10^\circ$10°W meridian.
Great circle
A
Small circle
B
b
The $50^\circ$50°N parallel.
Small circle
A
Great circle
B
c
The $70^\circ$70°E meridian.
Great circle
A
Small circle
B
d
The $80^\circ$80°S parallel.
Great circle
A
Small circle
B
Easy
2min
Easy
2min
Find the angular distance between Bali ($8^\circ$8°S $115^\circ$115°E) and Mandurah ($33^\circ$33°S $115^\circ$115°E) correct to the nearest degree.
Easy
1min
Find the angular distance between the points on Earth with coordinates of ($32$32°$N$N, $55$55°$E$E) and ($29$29°$N$N, $55$55°$E$E).
Easy
< 1min
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