It categorizes triangles into equilateral, isosceles, scalene, obtuse, right, and acute based on their sides and angles. The video also covers the concept of congruency, demonstrating how two ...

to build on students' knowledge of triangle ... in proposing definitions of other mathematical concepts (e.g., quadrilaterals) to highlight inclusive relations between triangles (e.g., recognizing ...

to build on students' knowledge of triangle ... in proposing definitions of other mathematical concepts (e.g., quadrilaterals) to highlight inclusive relations between triangles (e.g., recognizing ...

Looking at the diagram above, since OA and OB are radii of the circle, then OA = OB, therefore\(AOB\) forms an isosceles triangle inside the circle. Also, note that since \(\Delta AOB\) is ...