Triangle Classification - Angles - Reversed (Level 1)

This math topic focuses on the classification of triangles based on their angles. It includes problems where students must identify and select images of triangles categorized by the following angle types: acute (all angles less than 90 degrees), obtuse (one angle more than 90 degrees), and right (one right angle). Each question provides a description of the type of triangle and multiple images as possible answers, from which the correct one needs to be chosen based on the triangle's angle properties. This is part of a broader practice unit on geometry, specifically triangle classification.

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

Triangle Classification - Angles - Reversed Worksheet

Math worksheet on 'Triangle Classification - Angles - Reversed (Level 1)'. Part of a broader unit on 'Geometry - Triangle Classification - Practice' Learn online: app.mobius.academy/math/units/geometry_shapes_triangles_classifying_practice/

1

Choose the image of the type of triangle based on its name: Acute = all angles less than 90°

acute triangle

a

b

c

d

e

2

Choose the image of the type of triangle based on its name: Right = one right angle

right triangle

a

b

c

d

e

3

Choose the image of the type of triangle based on its name: Obtuse = one angle more than 90°

obtuse triangle

a

b

c

d

e