GEOMETRY LESSON 4-5 1. Name the angle opposite AB . 2. Name the angle opposite BC . 3. Name the side opposite A

1 http://dlc.k12.ar.us **Isosceles**, Equilateral and Right Triangles Ms. Laster **Isosceles** Triangles Ñ In Lesson 4.1, you learned that a triangle is **isosceles** if it has at least two congruent sides.

Lesson 10, page 1 of 6 Mr. Kor pi, 2006-2007 Lesson 10 Lesson 10 Glencoe Geometry Chapter 4.6 Analyzing **Isosceles** Triangles By the end of this lesson, you should be able to 1.

238 Chapter 4 Congruent Triangles U SING P ROPERTIES OF R IGHT T RIANGLES You have learned four ways to prove that triangles are congruent. • Side-Side-Side (SSS) Congruence Postulate (p. 212) • Side-Angle-Side (SAS) Congruence Postulate (p. 213) • Angle-Side-Angle (ASA) Congruence ...

**Isosceles** triangles Lesson Summary: Students will investigate the properties of **isosceles** triangles. Angle bisectors, perpendicular bisectors, midpoints, and medians are also examined in this lesson.

Trainer/Instructor Notes: Quadrilaterals **Isosceles** Right Triangles Reflections Geometry Module 3-1 Unit 3 - Quadrilaterals **Isosceles** Right Triangle Reflections Overview: Participants develop the properties of squares through reflections of **isosceles** right triangles.

Lesson 62 - Properties of a Trapezoid AIM: How do we determine what a trapezoid is and what are its properties? PERFORMANCE STANDARDS: M2, M5, M6, M7.

When the wizard bestows an honorary degree of "thinkology" upon the scarecrow, the scarecrow states, "The sum of the square roots of any two sides of an **isosceles** triangle is equal to the square root of the remaining side."

Title: Triangles Brief Overview: Students will be introduced to three types of triangles: equilateral, scalene, and **isosceles**. They will use manipulatives to build each of the three types, classify triangles based on their side attributes, and make models to test rules they have learned about ...

March 2010 1 Right **Isosceles** Triangles Form a Square, in Google SketchUp A right **isosceles** triangle has two equal sides, and interior angles of 45-45-90.