Polygons. Abney V. Martinez. Polygon. A polygon is a closed plane figure made up of line segments. Each line segment is a side . The point where the sides meet is called the vertex . More than one vertex are vertices . . Tell which shapes are polygons. .
Tell which shapes are polygons.
Scalene, equilateral, isosceles
Scalene triangles have no sides the same length.
2 sides the same length
2 eyes – 2 equal sides
All sides the same length
Think about angles
A right triangle has a right angle
A right angle makes a perfect square corner.
Acute angles _ less than 90 degrees
Just look at the angles – not the sides
Obtuse – greater than 90 degrees
Can you tell which angle is obtuse?