2,4,5+Triangles

=​ 2,4,5 Triangles= Your team will edit this page to teach your concept. Find the best resources (videos, games, quizzes, interactive manipuatives), insert digital pictures, include vocabulary (you may use links), include formulas, and uses of this concept. Give credit to each resource that you use. Resource links are listed on the main page. media type="custom" key="4940669" width="200" height="200"

https://www.brainpop.com/math/geometryandmeasurement/typesoftriangles/preview.weml Equilateral, Isosceles and Scalene

There are three special names given to triangles that tell how many sides (or angles) are equal.

There can be 3, 2 or no equal sides/angles:

Equilateral Triangle

**Equilateral Triangle ** Three equal sides Three equal angles, always 60°

Isosceles Triangle Two equal sides Two equal angles

Scalene Triangle

No equal sides No equal angles

What Type of Angle?

Triangles can also have names that tell you what type of angle is inside: Acute Triangle All angles are less than 90° Right Triangle

Has a right angle (90°) Obtuse Triangle

Has an angle more than 90° **//__QUIZ QUESTIONS:__//**  //__**A triangle with one angle greater than 90 degrees.**__//  ||  **A triangle with all three angles less than 90 degrees.**   **A triangle with one angle equal to 90 degrees.**  **A triangle having three equal sides.**
 *  **A:** equilateral triangle ||
 *  **B:** obtuse triangle ||
 *  **C:** acute triangle ||
 *  **D:** isosceles triangle
 *  **D:** isosceles triangle
 *  **A:** equilateral triangle ||
 *  **B:** obtuse triangle ||
 *  **C:** acute triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **D:** isosceles triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **D:** isosceles triangle ||
 * A triangle having at least two equal sides. **
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> A: acute triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **B:** isosceles triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **C:** equilateral triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **D:** obtuse triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **D:** obtuse triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **A:** right triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **B:** equilateral triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **C:** acute triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **D:** obtuse triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **D:** obtuse triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **A:** acute triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **B:** obtuse triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **C:** right triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **D:** equilateral triangle ||
 * <span style="font-family: 'Arial','sans-serif'; mso-fareast-font-family: 'Times New Roman';"> **D:** equilateral triangle ||

Answers to quiz B C B A D