Parallelograms
How may pairs of Parallel lines do parallelograms have?
Two pairs
True or false: A rhombus is always equilateral
True
What is the measure of each interior angle in a rectangle?
They are all ninety degrees
What is the measure of each interior angle of a square
Ninety degrees
Name two parallelograms
Rhombus, Square or rectangle
True or false: All angles of a rhombus are equal all the time
False
What pairs of sides in a rectangle are always equal in length
The rectangles opposite sides
In a square, all four sides are ____
Congruent
What is always true of a parallelograms opposite sides?
They are always congruent
Is every rhombus a square?
No
These sides of a rectangle will never intersect
Parallel sides
Because it has four right angles, a square is always a ____
Rectangle
What is always true of their opposite angles?
They are always congruent
What do the diagonals of a rhombus do to the angles?
They bisect them
Unlike most parallelograms, they diagonals of a rectangle are always ____
Congruent
Because all four sides are congruent a square is always a ____
Rhombus
What is always true of a parallelograms consecutive angles?
They are always supplementary
What happens when the diagonals of a rhombus intersect?
They are perpendicular (create ninety degree angles)
Why is a rectangle a parallelogram
Because it has two pairs of parallel sides
Name two properties of a squares diagonal
Congruent and perpendicular