Geometry week 3 Flashcards
1
Q
Corresponding angles:
F-pattern
A
- Parallel lines
- make an F pattern
- corresponding angles are equal
2
Q
Alternate Angles:
Z-pattern
A
- Parallel lines
- make a Z pattern
- alternate angles are equal
3
Q
Interior Angles:
C-pattern
A
- Parallel lines
- make a C pattern
- Angles add up to a sum of 180 degrees
4
Q
Describe the parallelogram/rhombus angle relationship:
a,b,c,d
A
a = c
b = d
diagonal angles are equal
5
Q
Supplementary angles theory (SAT):
A
Add up to 180 degrees
6
Q
Complementary angles theory (CAT):
A
Add up to 90 degrees
7
Q
Opposite angles theory (OAT):
A
same angles, opposite, diagonal positions
8
Q
Equilateral triangles:
A
All angles and sides are equal
9
Q
Isosceles triangles:
A
2 angles, 2 sides equal
10
Q
Scalene triangles:
A
No sides, no angles equal
11
Q
Acute triangle:
A
all angles <90 degrees
12
Q
Obtuse triangle:
A
One angle >90 degrees
13
Q
Right triangle:
A
1 angle = 90 degrees
14
Q
Equilateral triangle side and angle lengths:
ETT
A
60
60 x 3 = 180
15
Q
Opposite interior angle sum:
OIAS
A
x + y = z
interior + interior = exterior
