Triangles

Learn and practice identifying and classifying triangles with interactive resources from GeoGebra.

Upper Elementary

GRADES 4-5

Types of Triangles

Identify and classify triangles according to the measures of the interior angles and the lengths of the sides; relate triangles based upon their hierarchical attributes.

IstraživanjeGR. 4-5

Exploring Types of Triangles

VježbaGR. 4-5

Drawing Triangles

Middle School

GRADES 6-8

Angle Sum Properties of Triangles, Quadrilaterals, and Polygons

Use a variety of triangles, quadrilaterals, and other polygons to draw conclusions about the sum of the measures of the interior angles.

IstraživanjeGR. 6-8

Sum of Interior Angles of a Triangle

IstraživanjeGR. 6-8

Sum of Interior Angles of a Polygon

VježbaGR. 6-8

Finding the Missing Angle of a Polygon

Similar Triangles and Correspondence

Use properties of triangles to solve problems related to similar triangles and the relationships of their corresponding parts.

VježbaGR. 6-8

Making Similar Triangles

VježbaGR. 6-8

Similar Triangles or Not

Triangle Inequality Theorem

Recognize conditions of side lengths that determine a unique triangle, more than one triangle, or no triangle.

IstraživanjeGR. 6-8

Drawing Triangles

VježbaGR. 6-8

Visualizing Triangles

Povezane teme

Angles

Congruence and Similarity

Coordinates

Points, Lines, Segments, Rays, and Planes

Polygons

Pythagoras' Theorem

Solids

Symmetry

Rigid Transformations

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