A series of mind-boggling puzzles have been sweeping the web - but the latest might be the toughest yet. The tricky test features three main images - two triangles and a hexagon. Each shape is divided ...

Big Idea – We can describe, measure, and compare spatial relationships. to build on students' knowledge of triangle and develop students' reasoning with properties of different classes of triangles to ...

Understanding different types of angles and that angles in a triangle sum to 180° can be helpful when classifying a triangle. Recognising line symmetry and rotational symmetry will also help. Look for ...

Time for another brain teaser. How many triangles do you see here? Doctor ASKY posted the image above for fellow brainiacs to chew on. See if you can figure it out. We’ll wait. Ready? So, as you can ...

If you have six equally spaced points on a circle and join three of them, you can make three different triangles. (Two triangles are counted as the same if one is a mirror image or rotation of the ...