What is the difference between concave and convex polygons

The video tutorial explains the difference between concave and convex polygons. It demonstrates how to identify each type by extending the exterior lines of a polygon. If the extended lines do not intersect the interior, the polygon is convex. If they do intersect, it is concave. The tutorial uses the analogy of a cave to help remember that concave polygons have lines intersecting inside.

What is the first step in determining if a polygon is concave or convex?

• Calculate the area

• Measure the angles

• Extend the exterior lines

• Count the number of sides

What characteristic defines a convex polygon?

• Lines intersect inside the polygon

• No lines intersect the interior

• All sides are equal

• It has more than four sides

What happens when you extend the lines of a convex polygon?

• They create a new polygon

• They form a circle

• They intersect inside the polygon

• They do not intersect the interior

How can you remember the concept of a concave polygon?

• It has no interior angles

• It is always a triangle

• Remember it has equal sides

• Think of a cave as inside

Which of the following is true for a concave polygon?

• It has at least one interior angle greater than 180 degrees

• All angles are less than 90 degrees

• It cannot have more than five sides

• It is always a regular polygon