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Triangle Classification - Both - First Time (Level 1)

This math topic focuses on classifying triangles based on their angles and side lengths. It covers the identification and naming of various types of triangles, including acute isosceles, right scalene, acute scalene, obtuse isosceles, right isosceles, and obtuse scalene. These problems help students learn to differentiate triangles by examining their geometric properties such as angle measurements (acute, right, obtuse) and the length of their sides (isosceles, scalene). The questions are designed to assess and reinforce students' understanding of triangle classification in geometry.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Triangle Classification - Both - First Time

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.

In geometry, what is the name for a triangle with all angles less than 90° and two sides the same length?

Triangle Classification - Both - First Time Worksheet

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Math worksheet on 'Triangle Classification - Both - First Time (Level 1)'. Part of a broader unit on 'Geometry - Shape Classification (2D) - Advanced' Learn online: app.mobius.academy/math/units/geometry_shapes_2d_classifying_advanced/
1
An svg image showing a math problem
In geometry, what is the name for a triangle with one angle more than 90° and all sides different lengths?
a
Opportunity Sextant
b
Obtuse Scalene
2
An svg image showing a math problem
In geometry, what is the name for a triangle with one angle equal to 90° and all sides different lengths?
a
Ramshackle Shortened
b
Right Scalene
3
An svg image showing a math problem
In geometry, what is the name for a triangle with all angles less than 90° and two sides the same length?
a
Acute Isosceles
b
Amethyst Infinite
4
An svg image showing a math problem
In geometry, what is the name for a triangle with one angle more than 90° and two sides the same length?
a
Opportunity Infinite
b
Obtuse Isosceles
5
An svg image showing a math problem
In geometry, what is the name for a triangle with all angles less than 90° and two sides the same length?
a
Asteroid Iodine
b
Acute Isosceles
6
An svg image showing a math problem
In geometry, what is the name for a triangle with all angles less than 90° and two sides the same length?
a
Acute Isosceles
b
Amethyst Iodine
7
An svg image showing a math problem
In geometry, what is the name for a triangle with all angles less than 90° and two sides the same length?
a
Ardvark Infinite
b
Acute Isosceles