Math 4.5 unit
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Description and Tags
8 Terms
1
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a²
b²+c²-2bc cosA
2
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b²
a²+c²-2ac cos B
3
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c²
a²+b²-2ab cosC
4
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Law of Cosines
can be used to find missing sides or angles of a triangle when given SSS on SAS
5
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Law of sines
can be used to find missing sides or angles of a triangle when given ASA, AAS, ASS
6
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What triangle cant be solve
AAA
7
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SAS Formula for area
A=1/2 b**c * sin A*
A=1/2 a\*c \*sin B
A=1/2 a\*b sinC
A=1/2 a\*c \*sin B
A=1/2 a\*b sinC
8
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Heron´s formula SSS
s=a+b+c/2
A=square root s(s-a)(s-b)(s-c)
A=square root s(s-a)(s-b)(s-c)