Two cities London and Lagos are on latitude 60°N and their longitudes are 17°W and 28°E respectively.
If R = 6,370 km and π = 22/7, the distance between London and Lagos, measured along the parallel of latitude is

Two of the angles of a triangle are 120° and 45°.
If the side facing the angle 45° is 10cm long,
then the side facing the angle 120° is

An airplane flies 100 km on a bearing of 330° and then flies 300 km due West. How far West of the starting point is the plane?

An aircraft flies from Jordan(30°S, 44°E) to Riyadh(30°S, 28°W) in 26/3 hours.
If radius of the earth is 6,370 km, π = 22/7, and the plane flies along the parallel of latitude,
its average speed, to the nearest kilometer is

For any value of θ, the value of

is

sin 38° has the same value as

 The value of
(sin35°/cos 55°) + (cos 15°/ sin 75°) is

The values of tan 225° and tan 315° are respectively

The value of
is

Two  locations on the parallel of latitude φ°S have a difference in longitude of θ°.
If R = 6,370 km and π=22/7,
the distance between the two locations in km, is approximately

If the bearing of New York from Kansas city is 125°,
the bearing of Kansas city from New York is?

Point P(60°S,22°E) lies on the same latitude as point Q.
If the distance PQ measured along the parallel of latitude is 5,oo5 km,
the radius of the earth is 6.370 km and π = 22/7,
the longitude of point Q is

The value of
sin (870°) is

The angle of elevation of the top of a tree from a point P and the ground is 30°. From a point Q, 10 m closer to the foot of the tree, the angle of elevation is 45°.
How tall is the tree?

The value of
1 + sec²60° is

The value of
2cos 270° + sin 270° is

Points X and Y are respectively 48m North and 20m East of point Z.
The distance /XY/ is

Starting from town X(45°N, 17°E), an airplane flies to town Y(45°N, 47°E) along the parallel of latitude and later to a third town Z(60°N, 47°E) along the meridian.
(R = 6,370 km, π= 22/7).
The distance between Y and Z along the meridian is

A motorist travels from Abuja on a bearing of 150° to Kaduna 40 km away.
From Kaduna he travels to Lagos on a bearing of 210°.
If Lagos is located directly South of Abuja, how far is Lagos from Abuja?

If 4 sin²θ - 3 = 0,
the value of θ
for 0° < θ < 90° is

Sin 38° has the same value as

If sin θ = x,
the value of tan θ for 0° < θ < 90° is

Two locations on the equator are on longitudes 20°W and 70°E respectively.
If R = 6,370 km and π = 22/7, their distance apart along the equator, correct to 2 significant figures is

Three cities Cape Town, Prague and Tbilisi are such that Prague is located 50 km away from Cape Town on a bearing of 065°.
Tbilisi is 100 km away from Cape Town on a bearing of 305°.
The bearing of Tbilisi from Prague is approximately

If there is no stop-over at Dubai, and the average speed of the airplane is 500km/hr, the total time taken for the plane to fly from Lagos to Kuala Lumpur via Dubai is approximately