efinition: 4. TRUE OR NOT? For each of the following state- ments, if it is True simply write true, or if it is False, write false and draw a counterex- ample (an example showing that the statement is false). (a) TRUE OR NOT? Under an inclusive definition of trapezoid, any parallelogram is also a trapezoid. (b) TRUE OR NOT? Definitions used in math books are always the same in all books and dictio- naries. (c) TRUE OR NOT? Children who think that a square is not a rectangle are wrong.

Show that the triangle with vertices  A(1, 2), B(−2, −1), and C(−4, 4)  is isosceles. We must first find the length of all three sides of the triangle by finding the distance between the vertices.   d(A,B) d(B,C) d(A,C) Therefore, the following conclusion can be reached

Help

Determine the type of quadrilateral described by set of vertices. Give reasons for your answers.  A)J(-5, 2), K(-1, 3), L(-2, -1), M(-6, -2)