Dictionary
search :
browse :
#
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
Challenge
Alternate Interior Angles:
Alternate interior angles are pairs of angles formed when a third line (a transversal) crosses two other lines. These angles are on opposite sides of the transversal and are in between the other two lines.
Constructing Quadrilaterals 1
: Given two parallel lines, form various quadrilaterals.