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Application of the Standard Law of Sines

Core Standard: HSG-SRT.D.10

Aligned To Common Core Standard:

High School Geometry - HSG-SRT.D.10

Printable Worksheets And Lessons


  • Leg Length Step-by-Step Lesson- Find the leg of a triangle when you are given two angle measures and a side.

  • Guided Lesson - These problems all hover around the type of question you saw in the lesson.

  • Guided Lesson Explanation - The answers and process all start with the use of Sine equation.

  • Practice Worksheet - I focus most of the problems on finding legs of triangles because this is the most common question on the national exams.

  • Matching Worksheet - Match the lengths of legs to the missing parts of the triangles that are explained.

AnswersAnswer Keys



View Answer Keys- All the answer keys in one file.






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Homework Sheets

You are given some set dimensions and we ask you to find some missing sides and unknown lengths.




Practice Worksheets

Some problems will give sides, some will give you angles, and others will give you both.




Math Skill Quizzes

We work off of one basic triangle guide to answer these.