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Side Splitter Theorem

Unknown Grade45 min

Learning Objective

I can apply the Side Splitter Theorem to find missing lengths in similar triangles.

Lesson Flow

Watch Video

5 min

Using the Side Splitter Theorem

Unknown Channel

Practice

14 min

5 questions • Short answer

Exit Ticket

5 min

“In a triangle, a line parallel to one side divides the other two sides into segments of lengths 5 cm and x cm, and 8 cm and 12 cm respectively. Use the Side Splitter Theorem to find the value of x. Show all work. A triangle has sides of lengths 9 cm and 15 cm, and a line parallel to the base divides the other two sides into segments of lengths 4 cm and y cm. What is the length of y using the Side Splitter Theorem? Show all work.”

Teacher Guide

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  • Answer keys for all questions
  • Differentiation strategies
  • Extension activities
  • Printable student handouts

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