About 299,000 results
Open links in new tab
  1. Similar Triangles - Formulas, Properties, Theorems, Proofs

    Similar triangles are the triangles that have corresponding sides in proportion to each other and corresponding angles equal to each other. Understand the different theorems to prove similar …

  2. Proving Similar Triangles - MathBitsNotebook (Geo)

    Fortunately, we also have shortcut methods for establishing that two triangles are similar, without having to prove all 3 corresponding angles are congruent and all 3 sets of corresponding sides are in …

  3. Theorems about Similar Triangles - Math is Fun

    If ADE is any triangle and BC is drawn parallel to DE, then ABBD = ACCE. To show this is true, draw the line BF parallel to AE to complete a...

  4. Congruent and Similar Triangles | Brilliant Math & Science Wiki

    We have the methods SSS (side-side-side), SAS (side-angle-side), and AAA (angle-angle-angle), to prove that two triangles are similar. Note that in comparison with congruent figures, side here refers …

  5. Similar Triangle Theorems and Rules

    Learn about the definition, postulates, and theorems of similar triangles. Explore the Angle-Angle (AA), Side-Angle-Side (SAS), and Side-Side-Side (SSS) similarity criteria with examples, proofs, and key …

  6. Proofs with similar triangles - IXL

    Identify the criterion that can be applied to prove that the triangles are similar. If more than one criterion would apply, you can just pick one. Use the congruent angles, proportional sides, and similarity …

  7. Proving Triangles are Similar (examples, solutions, videos, …

    The following diagrams show how to use the AA Similarity Test or shortcut to determine whether two triangles are similar. Scroll down the page for more examples and solutions.

  8. How to Prove Similar Triangles (with Pictures) - wikiHow Life

    Oct 12, 2025 · Any one of these will provide sufficient evidence to prove that the triangles in question are similar. Gather your givens and relevant theorems and write the proof in a step-by-step fashion.

  9. Criteria for Similarity of Triangles - learntheta.com

    Master the criteria for proving triangle similarity (AA, SSS, SAS). Learn with concepts, solved examples and practice questions.

  10. 3 Simple Ways to Prove Triangles Are Similar: The Full Guide

    Sep 6, 2025 · In this guide, we’ll demystify the process of proving similarity by diving into three straightforward methods: the Angle-Angle (AA), Side-Side-Side (SSS), and Side-Angle-Side (SAS) …