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 Worksheet

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Triangle Classification - Both - First Time
1
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In geometry, what is the name for a triangle with one angle equal to 90° and all sides different lengths?
a
Right Scalene
b
Resting Staggered
2
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In geometry, what is the name for a triangle with one angle more than 90° and all sides different lengths?
a
Oblong Sandwich
b
Obtuse Scalene
3
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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
Alternative Idiomatic
4
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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 Staggered
5
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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 Sextant
6
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In geometry, what is the name for a triangle with one angle more than 90° and all sides different lengths?
a
Obtuse Scalene
b
Orangutan Sandwich
7
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In geometry, what is the name for a triangle with one angle more than 90° and two sides the same length?
a
Obtuse Isosceles
b
Omicron Intervene
8
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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