Introduction to Trigonometry — Concept Maps
Madhya Pradesh Board · Class 10 · Mathematics
4 concept maps of Introduction to Trigonometry for Madhya Pradesh Board Class 10 Mathematics, each also written out as a text outline.
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Trigonometry Chapter Overview — Concepts and Connections
The map in words
- Trigonometry
- Right Triangle
- Hypotenuse
- Opposite right angle
- Longest side
- Opposite Side
- Faces the angle
- Changes with angle
- Adjacent Side
- Next to the angle
- Changes with angle
- Hypotenuse
- Six Ratios
- Primary Ratios
- sin = Opp over Hyp
- cos = Adj over Hyp
- tan = Opp over Adj
- Reciprocal Ratios
- cosec = 1 over sin
- sec = 1 over cos
- cot = 1 over tan
- Quotient Relations
- tan = sin over cos
- cot = cos over sin
- Primary Ratios
- Standard Angles
- 0 degrees
- sin 0 = 0
- cos 0 = 1
- 30 degrees
- sin 30 = half
- cos 30 = root3 over 2
- 45 degrees
- sin 45 = 1 over root2
- cos 45 = 1 over root2
- 60 degrees
- sin 60 = root3 over 2
- cos 60 = half
- 90 degrees
- sin 90 = 1
- cos 90 = 0
- 0 degrees
- Identities
- Pythagorean
- sin2 + cos2 = 1
- 1 + tan2 = sec2
- 1 + cot2 = cosec2
- Applications
- Simplify expressions
- Prove identities
- Find unknown ratios
- Pythagorean
- Right Triangle
Trigonometry Chapter Overview — Key Concepts and Formulas
The map in words
- Trigonometry
- Trigonometric Ratios
- sin A = opp over hyp
- cos A = adj over hyp
- tan A = opp over adj
- cosec A = 1 over sin A
- sec A = 1 over cos A
- cot A = 1 over tan A
- Standard Angle Values
- 0 degrees
- 30 degrees
- 45 degrees
- 60 degrees
- 90 degrees
- Pythagorean Identities
- sin sq A + cos sq A = 1
- 1 + tan sq A = sec sq A
- 1 + cot sq A = cosec sq A
- Key Relations
- tan A = sin A over cos A
- cot A = cos A over sin A
- Reciprocal pairs
- Trigonometric Ratios
Complete Chapter Concept Map - Introduction to Trigonometry
The map in words
- Trigonometry
- Right Triangle
- Hypotenuse
- Opposite Side
- Adjacent Side
- Pythagoras Theorem
- Six Trig Ratios
- sin A = Opp / Hyp
- cos A = Adj / Hyp
- tan A = Opp / Adj
- cosec A = Hyp / Opp
- sec A = Hyp / Adj
- cot A = Adj / Opp
- Reciprocal Relations
- cosec = 1 / sin
- sec = 1 / cos
- cot = 1 / tan
- tan = sin / cos
- Standard Angles
- 0 degrees
- 30 degrees
- 45 degrees
- 60 degrees
- 90 degrees
- Trig Identities
- sin2A + cos2A = 1
- 1 + tan2A = sec2A
- 1 + cot2A = cosec2A
- Applications
- Height of Buildings
- Width of Rivers
- Distance in Astronomy
- Engineering
- Right Triangle
Trigonometry: study of relationships between the sides and angles of a triangle
The map in words
- Trigonometry: study of relationships between the sides and angles of a triangle
- Meaning and origin of trigonometry
- Right triangle ABC as the main model
- Primary trigonometric ratios
- Reciprocal trigonometric ratios
- Dependence only on angle
- Notation and language of trigonometry
- History of terms and notation
- Finding unknown sides and ratios
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