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Head First 2D Geometry by Dawn Griffiths, Stray

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the pythagorean theorem
Sams sketched up another two jumps which she hopes can be
built from the Kwik-klik parts.
Use the same pencil and ruler construction technique to find out
whether theres a part that creates a perfect perpendicular ramp
for each of them.
and ruler
10
11
8
9
6
?
you are here 4 113
sharpen solution
Sams sketched up another two jumps which she hopes can be
built from the Kwik-klik parts.
Use the same pencil and ruler construction technique to find out
whether theres a part that creates a perfect perpendicular ramp
for each of them.
and ruler solution
This line is 10cm
exac
tl
y.
T
his line is
6cm exac
tl
y.
W
e need t
o use an
upright of size 6.
T
his line is 9cm exac
tl
y.
None of these lines ar
e
exac
tl
y 11cm!
T
her
e doesn’t
seem t
o be an
upr
ight that
would fit her
e....
10
11
8
9
6
?
114 Chapter 3

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