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.

more
View

Triangle Classification - Both - First Time Worksheet

Mobius Math Academy logo
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
Obtuse Scalene
b
Oblong Sandwich
2
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
Obtuse Scalene
b
Octopus Sextant
3
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
Rostrum Sandwich
b
Right Scalene
4
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
Alternative Idiomatic
b
Acute Isosceles
5
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
Right Scalene
b
Radical Scalar
6
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
Right Scalene
b
Roving Sextant
7
An svg image showing a math problem
In geometry, what is the name for a triangle with all angles less than 90° and all sides different lengths?
a
Asteroid Sextant
b
Acute Scalene