You'll like draw a perfect square or rectangle by drawing congruent angles to form the box, and then congruent triangles (equilateral ... explain how to fill in the missing pieces based on a ...

Investigate congruence by manipulating the parts (sides and angles) of a triangle. If you can create two different triangles with the same parts, then those parts do not prove congruence. Can you ...

Triangles have three interior angles. They are formed at the vertices (corners). The sum of these angles is 180˚. There is one missing angle in this complete turn. To find the size of the missing ...