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Measuring the solar system

9 articles
2 videos
7 skills
How can we apply geometry and trigonometry in order to measure the size of the earth, moon and sun?

A flat earth

ARTICLE

Circles and arcs

PRACTICE PROBLEMS
Relate the length of an arc to the circumference of a whole circle.

Circumference of Earth

VIDEO 7:29 minutes

Occultations

ARTICLE

Angular measure 1

PRACTICE PROBLEMS
warm up questions on angular measure 

Trigonometry 0.5

PRACTICE PROBLEMS

Angular Measure 2

PRACTICE PROBLEMS

Parallax method

PRACTICE PROBLEMS

Solving similar triangles 2

PRACTICE PROBLEMS

Scale of solar system

VIDEO 12:31 minutes
Sal Khan describes the scale of our Solar System.