If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Course: Class 10 > Unit 10

Lesson 1: Applications of Trigonometry 9.1
Math
Class 10
Some applications of Trigonometry
Applications of Trigonometry 9.1
© 2024 Khan AcademyTerms of usePrivacy PolicyCookie Notice

Some applications of Trigonometry 9.1

Google Classroom

Problem

Sunil is standing on the ground facing the sun.
His height and the length of his shadow are in the ratio 1:3.
What is the angle of elevation, θ, of the sun?
θ=
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
degrees