Math Example--Polygons--Triangle Classification: Example 4

Topic

Triangles

Description

This example displays a triangle with angles measuring 89°, 44°, and 47°. Since all angles are less than 90°, the triangle is classified as acute.

Triangle classification can be based on side length or angle measures. Acute triangles have all angles less than 90°, as shown in this example. Reviewing multiple examples in this way helps students visually distinguish triangle types by angle.

Providing varied worked-out examples solidifies students’ understanding of the criteria for each triangle type, enabling them to accurately identify triangles by their angle measures.

Teacher's Script: "Here, all angles are less than 90°, so we classify this triangle as acute. Checking the angles ensures we apply the right classification."

For a complete collection of math examples related to Triangles, click on this link: Math Examples: Triangle Classification Collection.