guided notes - today in geometry
TRANSCRIPT
a
bc
d
a ∙ b = c ∙ d
part part = part part• •
9
2
6
x3
2
12
x
3
26
x
Example 1:
8
12
2x
3x
E A B
C
D
EA • EB = EC • ED
outside whole = outside whole• •
EA
B
C
D
713
4
x
Example 3:
E
A
B
CD 8
5
6
x
Example 4:
Notice that
on the
tangent
segment,
the outside
is the
whole!
E
A
B C
EA2 = EB • ECoutside whole = outside whole• •
E
A
B C
24
12 x
outside whole = outside whole• •
Example 5:
E
A
B
C
15
5
x
outside whole = outside whole• •
Example 6:
What you should know by now…
Given two chords, USE
Given two secants ORa tangent and a secant,
USE
part part = part part• •
outside whole = outside whole• •