Curated OER
Classifying Triangles
In this classifying triangles worksheet, 6th graders write the type of triangle, acute, right or obtuse, for 9 pictures of triangles, answers included.
Curated OER
Identifying Triangles
In this geometry activity, 10th graders identify a triangle as right, acute, or obtuse and identify the parts of a right triangle in a drop and drag game format. The one page interactive activity contains eight matching questions and is...
Noetic Learning
Kinds of Triangles (Online Interactive)
In this triangles learning exercise, students analyze pictures of four triangles. For each triangle, students mark if it is acute, obtuse, or right.