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Math A
INVESTIGATING THE RELATIONSHIP BETWEEN THE NUMBER OF SIDES IN A POLYGON WITH THE SUM OF ITS INTERIOR ANGLES
TRIANGLES
On your handheld, follow slides 1.1 1.3 as is, when you get to 1.4 you may want to use the steps below to guide you!
To calculate the sum A+B+C:
Click on b
Tools (1)
Arrow right and select Calculate (7)
Move your arrow on A+B+C and click once
Move your arrow to A, click once
Move your arrow to B, click once
Move your arrow to C, click once
Click one last time in an open area so you can see what the numerical value is
OTHER POLYGONS
On your handheld, follow slide 1.5-1.6 when you get to 1.7-1.9 use the steps below to help you complete each task. Remember to record the data values into the table on your answer sheet.
To create segments:
Click on b
Points & Lines (6)
Arrow to the right and select Segment (5)
Place your arrow on your fixed vertex and hit enter
Place your arrow on another vertex and hit enter
Repeat these steps until you have created segments from your fixed point to every other vertex in the polygon
GRAPHS/EQUATIONS
On your handheld, follow slides 1.10-1.14. For 1.15, you may want to refer back to these steps to create the linear regression equation.
To create a linear regression equation:
Click on c
Select Calculator (1)
Select b
Statistics (6)
Arrow to the right and select Stat Calculations (1)
Arrow to the right and select Linear Regressions (mx + b) (option 3)
Under x-list, arrow down and click on n
Under y-list, arrow down and lick on in
Save RegEqn in: f1
Hit Enter
To graph this equation:
Go back to the page with the graph on it (hit ctrl left until you get there!)
Hit e so the bottom entry line of the graph is seen (not highlighted) and arrow up to f1 and hit enter
Refer to these steps to help you with slide 1.16. To create a point on this line:
Click on b
Points and Lines (6)
Arrow to the right and select point (1)
Place the point on a line and hit enter (if the coordinates do not show up go to b tools coordinates and equations click on the point)
Double click on the x-value of the point and replace it with 8 and hit enter.
Brittany Zweibel MacArthur High School
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