# Measuring the Universe

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Lessons

Modeling the solar systemMeasuring the solar systemQuizOrbital mechanics 1SpectroscopyUnit testPractice

Quiz

Unit test

Learn

Practice

Arc length

4 questions

Practice

Occultation vs. transit vs. eclipse

4 questions

Practice

Angular measure 1

4 questions

Practice

Trigonometric ratios in right triangles

4 questions

Practice

Angular Measure 2

4 questions

Practice

Parallax method

7 questions

Practice

Solve similar triangles (advanced)

4 questions

Practice

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Practice

Area and circumference of circles challenge

7 questions

Practice

Center & radii of ellipses from equation

4 questions

Practice

Test your understanding of

**Measuring the Universe**with these 11 questions.About this unit

How have we applied science and mathematics to understand our solar system?