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Proof that 2 ABE = ADC
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Expression 12: "A" Subscript, 2 , Baseline equals StartRoot, 0 , EndRoot
A
2
=
0
equals
=
0
0
12
Expression 13: "B" Subscript, 1 , Baseline equals "A" Subscript, 1 , Baseline
B
1
=
A
1
equals
=
0
0
13
Expression 14: "B" Subscript, 2 , Baseline equals StartAbsoluteValue, 10 , EndAbsoluteValue
B
2
=
1
0
equals
=
10
1
0
14
Expression 15: "C" Subscript, 2 , Baseline equals "B" Subscript, 2 , Baseline
C
2
=
B
2
equals
=
10
1
0
15
Expression 16: "D" Subscript, 1 , Baseline equals "B" Subscript, 2 , Baseline
D
1
=
B
2
equals
=
10
1
0
16
Expression 17: "D" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline
D
2
=
A
2
equals
=
0
0
17
Expression 18: "E" Subscript, 1 , Baseline equals StartFraction, "D" Subscript, 1 , Baseline Over 2 , EndFraction
E
1
=
D
1
2
equals
=
5
5
18
Expression 19: "E" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline
E
2
=
A
2
equals
=
0
0
19
Graphs
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20
Expression 21: "y" less than 25
y
<
2
5
21
Hidden Label: "B" , "E"
B
,
E
Label
equals
=
left parenthesis, 0 , 10 , right parenthesis
0
,
1
0
left parenthesis, 5 , 0 , right parenthesis
5
,
0
22
Expression 23: polygon left parenthesis, "A" , "B" , "C" , "D" , right parenthesis
p
o
l
y
g
o
n
A
,
B
,
C
,
D
23
Points
Points
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24
39
powered by
powered by
A
B
C
D
E
|
|
Start black, beta End black
β
Start black, 2 beta End black
2
β
AB = AD
CD = BC + AD
"x"
x
"y"
y
"a" squared
a
2
"a" Superscript, "b" , Baseline
a
b
7
7
8
8
9
9
over
÷
functions
(
(
)
)
less than
<
greater than
>
4
4
5
5
6
6
times
×
| "a" |
|
a
|
,
,
less than or equal to
≤
greater than or equal to
≥
1
1
2
2
3
3
negative
−
A B C
StartRoot, , EndRoot
pi
π
0
0
.
.
equals
=
positive
+
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