Geometric Constructions
2
:
= 1 ( )
60
= = 1 ( )
( )
=
2
:
/1 = ( + 1)/(1 + )
: = 1/
/1 = (3) * /(1 + )
: = 1/
= (3)/( + 1)
^2 = 3/( + 1)^2
: ^2 = ^2 + (1)^2
^2 : ^2 = 3/( + 1)^2
^2 = 3/( + 1)^2 + 1
^2 * ( + 1)^2 = 3 + ( + 1)^2
^2 * ( ^2 + 2 + 1 ) = 3 + ^2 + 2 + 1
^4 + 2 ^3 + ^2 = ^2 + 2 + 4
^4 + 2 ^3 = 2 + 4
^3 * ( + 2) = 2 * ( + 2)
^3 = 2
= (2)
:
( )
5*/2 2 /5