How many line segments can be formed with 10 distinct points, no two of which are collinear? Your answer

Can a circle be inscribed in each of the following figures? a Parallelogram c Rectangle b Rhombus d Square

Using as few variables as possible, state the coordinates of each point if DEF is isosceles with DEF is an isosceles triangle with D(,_),E(,_),F(,_).

Complete each statement. a Given that the length and the width of a rectangle are measured in inches, its area is measured in _____________. b If two closed plane figures are congruent, then their areas are ___________.

Which lines or line segments or rays must be drawn or constructed in a triangle to locate its aincenter? bCircumcenter? corthocenter? dcentroid?