Math Example--Polygons--Triangle Classification: Example 5

Topic

Triangles

Description

This example presents a triangle with angles of 48°, 50°, and an unknown angle x. Solving for x, we find that x = 82°, meaning all angles are less than 90°, classifying it as acute.

Triangles can be identified by their angles or side lengths. Acute triangles have all angles less than 90°, as seen here. Reviewing examples like this supports student understanding of angle-based classification.

Seeing multiple worked examples helps students recognize patterns and confidently classify triangles based on established criteria.

Teacher's Script: "By solving for the missing angle, we can see that all angles are under 90°, making this an acute triangle. Observing the angle sizes helps us apply the right classification."

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