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2. Circle. Triangle. Semicircle
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Expression 15: "A" Subscript, 1 , Baseline equals negative "R" equals negative 9
A
1
=
−
R
equals
=
negative 9
−
9
15
Expression 16: "A" Subscript, 2 , Baseline equals "O" Subscript, 2 , Baseline equals 0
A
2
=
O
2
equals
=
0
0
16
Expression 17: "B" Subscript, 1 , Baseline equals "R" equals 9
B
1
=
R
equals
=
9
9
17
Expression 18: "B" Subscript, 2 , Baseline equals "O" Subscript, 2 , Baseline equals 0
B
2
=
O
2
equals
=
0
0
18
Expression 19: "C" Subscript, 2 , Baseline equals StartRoot, "R" squared minus "C" squared , EndRoot
C
2
=
R
2
−
C
2
1
equals
=
6.1 9 3 4 7 2 3 7 0 1 7
6
.
1
9
3
4
7
2
3
7
0
1
7
19
Expression 20: "C" Subscript, 2 , Baseline plus "R" Subscript, 1 , Baseline StartRoot, 2 , EndRoot sine left parenthesis, StartFraction, "B" Subscript, "O" "C" , Baseline Over 2 , EndFraction minus 135 , right parenthesis
C
2
+
R
1
2
s
i
n
B
O
C
2
−
1
3
5
equals
=
2.6 9 3 6 4 1 4 9 1 4 9
2
.
6
9
3
6
4
1
4
9
1
4
9
20
Expression 21: "M" Subscript, 1 , Baseline equals "C" Subscript, 1 , Baseline plus "R" Subscript, 1 , Baseline StartRoot, 2 , EndRoot cosine left parenthesis, StartFraction, "B" Subscript, "O" "C" , Baseline Over 2 , EndFraction minus 135 , right parenthesis
M
1
=
C
1
+
R
1
2
c
o
s
B
O
C
2
−
1
3
5
equals
=
5.0 2 5 8 0 8 2 6 0 2 2
5
.
0
2
5
8
0
8
2
6
0
2
2
21
Expression 22: "M" Subscript, 2 , Baseline equals "C" Subscript, 2 , Baseline plus "R" Subscript, 1 , Baseline StartRoot, 2 , EndRoot sine left parenthesis, StartFraction, "B" Subscript, "O" "C" , Baseline Over 2 , EndFraction minus 135 , right parenthesis
M
2
=
C
2
+
R
1
2
s
i
n
B
O
C
2
−
1
3
5
equals
=
2.6 9 3 6 4 1 4 9 1 4 9
2
.
6
9
3
6
4
1
4
9
1
4
9
22
Graphs
Graphs
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23
Expression 24: "y" less than 25 Has graph. To audio trace, press ALT+T.
y
<
2
5
24
Expression 25: polygon left parenthesis, "A" , "B" , "C" , right parenthesis Has graph.
p
o
l
y
g
o
n
A
,
B
,
C
25
Expression 26: left parenthesis, "M" Subscript, 1 , Baseline plus "R" Subscript, 1 , Baseline cos "t" , "M" Subscript, 2 , Baseline plus "R" Subscript, 1 , Baseline sin "t" , right parenthesis Has graph.
M
1
+
R
1
c
o
s
t
,
M
2
+
R
1
s
i
n
t
0
0
domain t Minimum:
less than or equal to "t" less than or equal to
≤
t
≤
domain t Maximum: 360
3
6
0
26
Expression 27: left parenthesis, "M" Subscript, 1 , Baseline plus "R" Subscript, 1 , Baseline cos "t" , "M" Subscript, 2 , Baseline plus "R" Subscript, 1 , Baseline sin "t" , right parenthesis Has graph.
M
1
+
R
1
c
o
s
t
,
M
2
+
R
1
s
i
n
t
0
0
domain t Minimum:
less than or equal to "t" less than or equal to
≤
t
≤
domain t Maximum: 360
3
6
0
27
Expression 28: polygon left parenthesis, "A" , "B" , "C" , right parenthesis Has graph.
p
o
l
y
g
o
n
A
,
B
,
C
28
Expression 29: left parenthesis, "R" cos "t" , "R" sin "t" , right parenthesis Has graph.
R
c
o
s
t
,
R
s
i
n
t
0
0
domain t Minimum:
less than or equal to "t" less than or equal to
≤
t
≤
domain t Maximum: 180
1
8
0
29
Points
Points
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30
36
powered by
powered by
O
A
B
C
M
"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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