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Grade 3 - Mathematics
8.3 Polygons

  1. Polygons are closed figures that are formed by line segments.
  2. Each side is a line segment.
  3. The point where two line segments meet is a vertex.
  4. The sides do not cross each other and exactly two sides meet at every vertex.
  5. The segments that form the boundary are sides, which meet at a vertices to form the interior angle.
  6. If we connect two vertices that are not adjacent on the polygon, we form a diagonal.
Examples: Squares, Triangles, Rectangles, etc.

Directions: Answer the following questions. Also draw 10 examples of polygons an name the sides, vertices and diagonals on a sheet of paper.
Q 1: Polygons are named by starting at one vertex and naming all the other vertices in order. Name this figure.

Polygon ACDB
Polygon ADBC
Polygon ABCD

Q 2: Which of the following figures is not a polygon?

B
D
A
C

Q 3: A closed figure that is formed by line segments is called a
point
line
polygon

Q 4: In a polygon each side is a
dot
point
line segment

Q 5: In polygons, the point where two line segments meet is called a
side
vertex
face

Q 6: Which of these is not a polygon?
circle
square
rectangle
triangle

Question 7: This question is available to subscribers only!

Question 8: This question is available to subscribers only!


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