Interior Angles in Polygons Exploration

INSTRUCTIONS
Your objective: Find a rule for the sum of the interior angles of a polygon (for today). [br][br]1) Before you begin, make sure the box labeled "Show Interior Angles" is the only one checked. You will be working on that part only for today.[br][br]2) For each polygon, drag the slider from left to right. As you drag the slider, answer the questions along the way.[br][br]Have fun!
Triangle
Interior angles in a Triangle
Move the slider "Show Interior Angles" slowly and watch what happens.[br]What is the best description of the angle that is created by the sum of these angles?
Interior angles in a Triangle
Move the slider "Show Interior Angles" slowly and watch what happens.[br]What is the sum of the interior angles in any triangle?[br]You can change the shape of the triangle by moving vertices.
Quadrilateral
Interior Angles in a Quadrilateral
Move the slider "Show Interior Angles" slowly and watch what happens once it gets to the right side.[br]How many triangles are created inside the quadrilateral? Write your answer as a number.[br]You can change the shape of the quadrilateral by moving the vertices.
Interior Angles in a Quadrilateral - Making connections
Using our previous answer and the fact that the sum of the interior angles in a triangle = 180[sup]o[br][/sup]we can determine the sum of the interior angles of a quadrilateral.[br]Which is the correct calculation?
Pentagon
Interior Angles in a Pentagon
Move the slider "Show Interior Angles" slowly and watch what happens once it gets to the right side.[br]How many triangles are created inside the pentagon? Write your answer as a number.[br]You can change the shape of the quadrilateral by moving the vertices.
Pentagon
Using our previous answer and the fact that the sum of the interior angles in a triangle = 180[sup]o[br][/sup]we can determine the sum of the interior angles of a pentagon.[br]Which is the correct calculation?
Hexagon
Hexagon
Move the slider "Show Interior Angles" slowly and watch what happens once it gets to the right side.[br]How many triangles are created inside the hexagon? Write your answer as a number.[br]
Interior Angles in a Hexagon - Making connections
Using our previous answer and the fact that the sum of the interior angles in a triangle = 180[sup]o[br][/sup]we can determine the sum of the interior angles of a hexagon.[br]Which is the correct calculation?
Luk

Information: Interior Angles in Polygons Exploration