Evan W Portfolio Problem

Wallwisher problem
World Day Competition Grant, Maggie and Evan (The Appleteers)

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1/23


Geogebra Challenge


Screencast Week 6



Geogebra Assignment 5
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Geogebra Assignment 4
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Geogebra 3
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Geogebra Problem EW


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Page 1, Numbers 8 & 9
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8. In the diagram, AEB is straight and angles A and B are right. Calculate the total distance DE+EC.

external image latex2png.2.php?z=100&eq=15%5E2%2B10%5E2%3D325%20
external image latex2png.2.php?z=100&eq=%5Csqrt%7B325%7D%3D18.02 external image latex2png.2.php?z=100&eq=DE%3D18.02
external image latex2png.2.php?z=100&eq=10%5E2%2B20%5E2%3D500
external image latex2png.2.php?z=100&eq=%5Csqrt%7B500%7D%3D22.36 external image latex2png.2.php?z=100&eq=EC%3D22.36
external image latex2png.2.php?z=100&eq=DEC%3D40.38

9. If AE=20 and EB=10 instead, would DE+EC be the same?

external image latex2png.2.php?z=100&eq=15%5E2%2B20%5E2%3D625
external image latex2png.2.php?z=100&eq=%5Csqrt%7B625%7D%3D25 external image latex2png.2.php?z=100&eq=DE%3D25
external image latex2png.2.php?z=100&eq=10%5E2%2B10%5E2%3D200
external image latex2png.2.php?z=100&eq=%5Csqrt%7B200%7D%3D14.14 external image latex2png.2.php?z=100&eq=EC%3D39.14
external image latex2png.2.php?z=100&eq=DEC%3D39.14

If you switch the values, DE+EC would not be the same.