Question

What is the angle subtended by 1 m pole at a distance 1 km on the ground in sexagesimal measure?

Answer 1

45 degree is the answer

Answer 2

we know that,

tan Ф = 1/100

tan Ф = 0.001

so that tan Ф  is very small means very very small, so that tan Ф = Ф,,

therefore,

Ф = 0.001

Ф = 0.001* (180/ pi )

Ф= 9/50 pi

so that angle on the ground in sexagesimal measure is 9/50 pi