 PLAY PREVIEW

### Segments in this Video

#### Review Basics: Special Triangles(02:02)

FREE PREVIEW

Review triangle classifications; CPCTC; the SAS, SSS, and ASA postulates; the angle-angle-side theorem; and the hypotenuse-leg theorem.

#### Isosceles & Right Triangle Theorems(06:53)

Learn the components of isosceles and right triangles. See proofs for congruent angles and sides of an isosceles triangle. Learn the angle-angle-side and hypotenuse leg theorem.

#### General Definitions(03:42)

A polygon is a simple, closed, multi-sided figure that has line segments. Other definitions include: convex region, concave region, diagonal, and regular polygons. Determine the sum of the measures of the angles inside a shape.

#### Quadrilaterals & Their Secret Information(04:35)

Review the definition of a quadrilateral and the five categories. Learn key theorems of parallelograms.

#### Similarities Between Triangles(03:12)

Polygons are similar when they are proportionately the same size. See examples of triangles with congruent angles, proportional sides, and differing size.

#### Proving the Similarity Of Triangles(02:51)

Learn three properties to prove two triangles are similar: the angle-angle similarity postulate, the side-angle-side similarity theorem, and the side-side-side similarity theorem.

#### Credits: Special Triangles(01:07)

Credits: Special Triangles

For additional digital leasing and purchase options contact a media consultant at 800-257-5126
(press option 3) or sales@films.com.

# Special Triangles

Part of the Series : Teaching Systems Geometry Series
 3-Year Streaming Price: \$129.95

Share

### Description

Topics covered in this video: isosceles triangles, angle-angle-side theorem, hypotenuse-leg theorem, polygons, concave and convex regions, regular polygons, rectangles, parallelograms, squares, rhombi, and trapezoids.

Length: 26 minutes

Item#: BVL154991 Closed Captioned