Saturday, September 24, 2016

Inv 1.4 and 1.5

Investigation 1.4
Focus Questions: When a drawing shows two rays with a common endpoint how many rotation angles are there? How would you estimate the measure of each angle? How do you measure and angle with an angle ruler and a protractor?

Important vocabulary:

  • supplementary angle - angles that add up to 180˚
  • complementary angle- angles that add up to 90˚

Here are the notes from today's class and the 1.3 and 1.4 homework.

Here is a sheet to help with benchmark angles.  This was given as a hard copy to all the students.

Focus Question: In a triangle, what measures of side length and angles give enough information to draw a figure?

(These notes cover the Investigation Questions A and B from class.)

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