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Angle ADC = X = 15°
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Expression 12: "C" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline
C
2
=
A
2
equals
=
0
0
12
Expression 13: "D" Subscript, 1 , Baseline equals "C" Subscript, 1 , Baseline plus "C" Subscript, "D" , Baseline cosine left parenthesis, 180 minus "A" Subscript, "C" "D" , Baseline , right parenthesis
D
1
=
C
1
+
C
D
c
o
s
1
8
0
−
A
C
D
equals
=
0.4 4 8 2 8 7 7 3 6 0 8 4
0
.
4
4
8
2
8
7
7
3
6
0
8
4
13
Expression 14: "D" Subscript, 2 , Baseline equals "C" Subscript, 2 , Baseline plus "C" Subscript, "D" , Baseline sine left parenthesis, 180 minus "A" Subscript, "C" "D" , Baseline , right parenthesis
D
2
=
C
2
+
C
D
s
i
n
1
8
0
−
A
C
D
equals
=
0.2 5 8 8 1 9 0 4 5 1 0 3
0
.
2
5
8
8
1
9
0
4
5
1
0
3
14
Expression 15: "m" Subscript, 1 , Baseline equals tangent left parenthesis, 120 minus "A" Subscript, "C" "D" , Baseline , right parenthesis
m
1
=
t
a
n
1
2
0
−
A
C
D
equals
=
negative 3.7 3 2 0 5 0 8 0 7 5 7
−
3
.
7
3
2
0
5
0
8
0
7
5
7
15
Expression 16: "y" equals "m" Subscript, 1 , Baseline left parenthesis, "x" minus "D" Subscript, 1 , Baseline , right parenthesis plus "D" Subscript, 2 , Baseline
y
=
m
1
x
−
D
1
+
D
2
16
Expression 17: "B" Subscript, 2 , Baseline equals "m" Subscript, 1 , Baseline left parenthesis, "B" Subscript, 1 , Baseline minus "D" Subscript, 1 , Baseline , right parenthesis plus "D" Subscript, 2 , Baseline
B
2
=
m
1
B
1
−
D
1
+
D
2
equals
=
1.9 3 1 8 5 1 6 5 2 5 8
1
.
9
3
1
8
5
1
6
5
2
5
8
17
Expression 18: "B" Subscript, 1 , Baseline equals "A" Subscript, 1 , Baseline
B
1
=
A
1
equals
=
0
0
18
Graphs
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19
Expression 20: polygon left parenthesis, "B" , "D" , right parenthesis
p
o
l
y
g
o
n
B
,
D
20
Expression 21: polygon left parenthesis, "C" , "D" , right parenthesis
p
o
l
y
g
o
n
C
,
D
21
Expression 22: polygon left parenthesis, "A" , "B" , "C" , right parenthesis
p
o
l
y
g
o
n
A
,
B
,
C
22
Points
Points
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23
36
powered by
powered by
A
B
C
D
Start black, StartRoot, 3 , EndRoot End black
3
Start black, 1 End black
1
Start black, StartRoot, 2 , EndRoot End black
2
Start black, 120 degrees End black
1
2
0
°
X
"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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