All Circles Are Similar
Geometry · Flashcards · Application
GEOMETRY · FLASHCARDS
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QUESTION
Find
b
b
b
using the Law of Cosines if
a
=
4
a=4
a
=
4
,
c
=
11
c=11
c
=
11
, and
B
=
60
∘
B=60^\circ
B
=
6
0
∘
.
QUESTION
Identify whether
a
=
6
a=6
a
=
6
,
c
=
12
c=12
c
=
12
,
A
=
30
∘
A=30^\circ
A
=
3
0
∘
gives
0
0
0
,
1
1
1
, or
2
2
2
triangles using
h
=
c
sin
A
h=c\sin A
h
=
c
sin
A
.
QUESTION
Find
h
h
h
(altitude to side
c
c
c
) if
c
=
20
c=20
c
=
20
and
A
=
30
∘
A=30^\circ
A
=
3
0
∘
in the
S
S
A
SSA
S
S
A
setup.
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ANSWER
h
=
c
sin
A
=
20
sin
30
∘
=
10
h=c\sin A=20\sin 30^\circ=10
h
=
c
sin
A
=
20
sin
3
0
∘
=
10
. Height calculation for ambiguous case analysis.
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