20216454
Description
Mind Map by lizabeth rawson, updated more than 1 year ago
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Created by lizabeth rawson
over 4 years ago
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sine & cosine rules
- sine rule
- a b c
- _______ = ________ = _______
- sinA sinB sinC
- sinA sinB sinC
- _______ = ________ = _______
- a b c
- cosine rule
- a² = b² + c² - 2bc cosA
- a² = b² + c² - 2bc cosA
- Lower case a, b and c represents sides of a triangle
- the upper case A, B and C represent the
opposite angles of the sides of a triangle
- the upper case A, B and C represent the
opposite angles of the sides of a triangle
- area of triangle = 1/2 ab sinC
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