Quadrilaterals

Kathryn Peake, Feb 12, 2014

Investigating the properties of quadrilaterals

Table of Contents

  1. Exterior Angles
    1. Exterior Angles
  2. Quadrilaterals
    1. Quadrilateral 1
    2. Quadrilateral 2
    3. Quadrilateral 3
    4. Quadrilateral 4
    5. Quadrilateral 5
    6. Quadrilateral 6
    7. Quadrilateral 7
  3. Investigate!
    1. Investigate!

1.

Exterior Angles

  • 1. Exterior Angles

1.1.

Exterior Angles

– Kathryn Peake

2.

Quadrilaterals

  • 1. Quadrilateral 1
  • 2. Quadrilateral 2
  • 3. Quadrilateral 3
  • 4. Quadrilateral 4
  • 5. Quadrilateral 5
  • 6. Quadrilateral 6
  • 7. Quadrilateral 7

2.1.

Quadrilateral 1

Quadrilateral 1

1. Change the quadrilateral by moving the corners of the shape. What do you notice? 2. What is the name of the quadrilateral? 3. Construct the diagonals of the quadrilateral. 4. Complete the table of properties.
– Kathryn Peake

2.2.

–

2.3.

–

2.4.

–

2.5.

–

2.6.

–

2.7.

–

3.

Investigate!

  • 1. Investigate!

3.1.

Investigate!

1. Find the midpoints of each edge of the quadrilateral.[br]2. Join them up to make another quadrilateral.[br]3. Move the vertices (corners) of the first quadrilateral.[br]4. What do you notice about the inner quadrilateral?[br]5. Can you explain why?[br]6. Find the areas of the triangles and quadrilaterals. What do you notice?
– Kathryn Peake

Information