Types of Quadrilaterals 4 sided figures A four

Types of Quadrilaterals (4 -sided figures)

A four sided figure with both pairs of opposite sides parallel

Some Special Properties of Parallelograms • Opposite sides are congruent • Diagonals bisect each other • Both pairs of opposite sides are parallel

1. Solve for x.

2. Solve for x.

A parallelogram with 4 right angles

Some Special Properties of Rectangles • All the properties of a parallelogram • Diagonals are congruent • 4 right angles

A parallelogram with 4 congruent sides

Some Special Properties of Rhombus • All the properties of a parallelogram • Diagonals are perpendicular • 4 congruent sides

3. Solve for x in this rhombus.

Rhombus. 4. VY = m ZVY = Z

A parallelogram with 4 congruent sides & 4 right angles

Some Special Properties of Square • All the properties of a parallelogram, rectangle, & rhombus

Solve for x and y in this square.

Square 1. EJ = 2. HF = 4. m EJF 5. m HGF

A quadrilateral with 2 pairs of consecutive congruent sides, but opposites sides are NOT parallel

Some Special Properties of Kite • Diagonals are perpendicular

A quadrilateral with 1 pair of parallel sides called bases

Have only one pair of opposite sides that are parallel. base leg base

A quadrilateral with 1 pair of parallel sides called bases and nonparallel sides are congruent (legs)

Some Special Properties of Isosceles Trapezoid • Diagonals are congruent

Classifying Triangles by Sides • Equilateral – 3 congruent sides • Isosceles – 2 congruent sides • Scalene – No sides congruent