Chapitre 11 Angles

\
DAC
[
CAB
\
DAC = 68
[
CAB = 22
\
DAB

\
DAC
[
CAB
\
DAC = 68
[
CAB = 112
\
DAB
[
x0Oy
[
xOy0
[
x0Oy0
d
xOy

[
xO2z
\
y0O1z0
(yy0) (xx0)
[
xO2z
\
y0O1z0
\
z0O2x0
\
z0O1y0
(yy0) (xx0)
\
z0O2x0
\
z0O1y0

\
y0O1z0=
[
xO2z
(yy0) (zz0)