Classifying Triangles
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Objective
I can name triangles as equilateral, isosceles, or scalene based on their sides, and as acute, right, or obtuse based on their angles.
Part 1 of 3
Warm-up video
Unknown Channel · 5:00
We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 3
Practice
6 questions
A triangle has sides measuring 7 cm, 7 cm, and 12 cm. Classify this triangle by its sides.
Draw an example of an acute triangle. Explain why your triangle is classified as acute.
Part 3 of 3
Exit ticket
Quick comprehension check
“A triangle has side lengths of 5 cm, 8 cm, and 5 cm. It also has one angle that measures 110°. Classify the triangle by its sides and by its angles. A triangle has side lengths of 4 inches, 4 inches, and 4 inches. All of its angles measure 60°. Classify the triangle by its sides and by its angles. ”
Sample answer included in the free materials
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Teacher Guide
Complete lesson plan with answer keys and alternate activities
Student Handout
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