Find approximately the distance at which a globe,5 1/2 cm in diameter will subtend an angle of 6' - Maths - Inverse Trigonometric Functions

Question

Find approximately the distance at which a globe,5 1/2 cm in
diameter will subtend an angle of 6'

Neha Sethi · Accepted Answer

Dear student
<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_5b51edf03ab67%20png">
We have,θ=6'=660°=110×π180c=π1800 radianNow, sinθ=BCACsinπ1800=2
75ACAC=2 75sinπ1800=2 750
00175   as sinπ1800 =0 00175
  (approx) =1571 42 cm
Regards