Geometry with Trigonometry

Index 255

−→
OZ

⊥
, 207
c(x), 241
f(F), 127
i(α), 130
l≡Fax+by+c=0, 87
l‖m,54
l⊥m,44
nα, 138
rα;Z 0 , 150
s(x), 241
sα;Z 0 , 153
sl,58
t∼∠FQOZ, 249
t.(O,Z 1 ), 188
tZ 1 ,Z 2 , 121
xF, 135
C(O;k), 103
ER(|BAC),30

F(OZ 4 ,OZ 5 ), 175

adjacent sides
convex quadrilateral, 32
adjacent vertices
convex quadrilateral, 32
alternate angles, 54
angle
arms, 30
co-supported, 129
degree-measure, 40
duo, 169
full, 30
half, 139
indicator, 130
multiple radian measures, 249
multiples, 138
null, 30
radian measure, 247
reflex,30
right, 44
sensed, 153
straight, 30
vertex, 30
verticall opposite, 41

wedge, 30

angle- support

arms, 29

angle-support, 29

mid-line, 46

straight, 29

vertex, 29

angles

alternate, 54

corresponding, 62

difference, 138

modified sum, 136

subtraction, 138

sum, 135

supplementary, 41

area

convex quadrilateral, 75

polygonal region, 78

triangle, 73

areal coordinates

points, 193

arms

angle, 30

angle-support, 29

ASA principle, 52

axes

reference, 81

axial symmetry, 58

bisectors, 168

Cartesian complex coordinate, 145

Cartesian coordinates, 82

Cartesian equation

line, 87

centre

circle, 103

centroid, 203

Ceva’s theorem, 196

chord

circle, 105

circle, 103

centre, 103

chord, 105