Constructions

__**PHYSICAL CONSTRUCTION #1:**__
Watch this video : media type="custom" key="27909607"

(unedited: [] from 1:32 to 2:23) Now on your paper... Different sized circles with the same center are called __concentric__.
 * Draw a circle with center A, and a radius of 3cm
 * Draw a circle with center A, and a radius of 5cm

__**PHYSICAL CONSTRUCTION #2**__ :
Watch this video media type="custom" key="27909613"

(unedited: [] from 2:45 to 4:01) Draw the flower!

__**PHYSICAL CONSTRUCTION #3**__ :
Watch this video, and draw a perpendicular bisector of segment AB media type="custom" key="27907883" Draw the perpendicular bisector of segment XY

__**PHYSICAL CONSTRUCTION #4**__ :
Watch this video, and draw the bisector of the angle media type="custom" key="27907899"

__**PHYSICAL CONSTRUCTION #5**__ :
Watch this video, and draw an equilateral triangle. (all 3 sides have the same length) media type="custom" key="27907903"

=____= =. __GEOGEBRA CONSTRUCTIONS__=

Introduction:
 * Download GEOGEBRA: Go to geogebra.org à software à GeoGebra Chrome App à Add to chrome
 * From now on you can access it as an APP.
 * Launch it.
 * Select GEOMETRY.
 * Open a new tab, go to []
 * Scroll down and watch the two videos "How to construct a polygon" "How NOT to construct a polygon"

__**GEOGEBRA CONSTRUCTION #1**__ :
Create Perpendicular lines:



Call your teacher over to check it before going on to the next construction

__**GEOGEBRA CONSTRUCTION #2**__ :
Create Parallel lines: Call your teacher over to check it before going on to the next construction

__**GEOGEBRA CONSTRUCTION #3**__ :
Create a Perpendicular Bisector:

Call your teacher over to check it before going on to the next construction

__**GEOGEBRA CONSTRUCTION #4**__ :
Create an Angle Bisector: Call your teacher over to check it before going on to the next construction

__**GEOGEBRA CONSTRUCTION #5**__ :
Rectangle: Watch this video (no sound) and mimic it to create a rectangle. media type="custom" key="27908891" After you have made your rectangle, you will notice that you have all these extra parts on the screen. Hide them by right clicking, and uncheck "show object" Do this until you have **ONLY** a rectangle, and no extra lines.

Call your teacher over to check it before going on to the next construction =____= =**__SPREADSHEETS__**=

__**SPREADSHEET #1**__ :
Open your Google drive, and select NEW --> Google Sheets

We know that the angles of a triangle add up to 180. You are going to write a simple spreadsheet program that if you type in 2 of the angles, it will calculate the third for you.


 * Click on box B2
 * Type (in B2): //T he first angle is //
 * Click on box D2
 * Type (in D2): //T he second angle is //
 * Click on box F2
 * Type (in F2): //T he third angle is //
 * These are descriptions, we are going to put the actual measurements in the boxes below.
 * In box B3 type the number 40
 * In box D3, type the number 60
 * If those are two of the angles in a triangle, we know that we can subtract them from 180 to find the third angle. BUT WE ARE GOING TO HAVE THE COMPUTER DO THAT FOR US, and it will write the answer in F3
 * Click on box F3
 * Type "=180-B3-D3"
 * (don't include the quotes)
 * Hit enter
 * Box F3 should automatically change to 80!
 * Type any angle measures in B3 and D3, and F3 should automatically calculate what 180 minus those numbers should be

Call your teacher over to check it before going on to the next construction