A regular polygon is a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length).
2. Which polygon is always irregular?
traingle - NOT (equilateral triangle)
trapezoid - YES
square - NOT
hexagon - NOT (regular hexagon)
3. Which statements are always true about regular polygon?
All sides are congruent - ALWAYS TRUE
Pairs of sides are parallel - NOT (equilateral triangle)
All angles are congruent - ALWAYS TRUE
All angles measure 90° - NOT (equilateral triangle - 60°)
4. an irregular quadrileteral
5. A rug in the shape of a regular quadrilateral has a side length of 20ft. What is the perimeter of the rug?
A regular quadrilateral is a square.
A square has four congruent sides. The perimeter is:
P = 4 · 20 ft = 80 ft
Answer: 80 ft
