M7+ Investigation 1 Reflection

1. What are the common properties of all polygons?

All polygons :
- Are two dimensional
- Are closed figures
- Are made up of three or more line segments
- Have line segments that do not cross each other
- Have only two sides meeting at the same vertex
- Have only straight sides

An example:
A polygon 

Not a polygon 


2. What does the measure in degrees tell you about an angle?
    What are some common benchmark angles?

It can help you classify the angle as obtuse (over 90º), right (90º), or acute (less that 90º).

Common benchmark angles are 0º, 45º, 90º, 180º, and 360º.

3. What strategies can be used to estimate angle measures? To deduce angle measures from given information? To find accurate measurements with tools?

You could use benchmark angles such as 90º and 180º to estimate angle measures.

To deduce angle measures, you could find the complementary or supplementary angle according to the information provided.

You could use a protractor or angle ruler to find accurate measurements of angles.

Comments

  1. Anonymous23 September 2014 at 08:08

    MATH CONTENT
    - completely & correctly answered? some but yes
    - clearly & correctly explained? brief/general explanations make this hard to gauge
    BLOG CONSTRUCTION
    - complete sentences? yes
    - appropriate specific vocab? some
    - supporting visuals? no
    OVERALL BLOG GRADE
    B

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