8
8
8
5
5
5
a
a
a
60
∘
60^\circ
6
0
∘
A
A
A
B
B
B
C
C
C
9
9
9
7
7
7
a
a
a
60
∘
60^\circ
6
0
∘
A
A
A
B
B
B
C
C
C
y
=
3
/
2
y=\sqrt3/2
y
=
3
/2
π
/
3
\pi/3
π
/3
2
π
/
3
2\pi/3
2
π
/3
O
O
O
π
/
3
\pi/3
π
/3
2
π
/
3
2\pi/3
2
π
/3
sin
A
=
0.8
\sin A=0.8
sin
A
=
0.8
53
∘
53^\circ
5
3
∘
A
2
A_2
A
2
O
O
O
53
∘
53^\circ
5
3
∘
A
2
A_2
A
2
s
=
3
π
s=3\pi
s
=
3
π
9
9
9
9
9
9
θ
\theta
θ
O
O
O
y
=
3
/
2
y=\sqrt3/2
y
=
3
/2
O
O
O
x
1
x_1
x
1
x
2
x_2
x
2
quadrant I
quadrant II
3
π
3\pi
3
π
9
9
9
9
9
9
π
/
3
\pi/3
π
/3
O
O
O
ESAT
Genius
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Mathematics 2 · Trigonometry
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