Maharashtra State BoardSSC (English Medium) 9th Standard
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In the Given Figure, ∠ Pqr = 90° , ∠ Pqs = 90° , ∠ Prq = α and ∠ Qps = θ Write the Following Trigonometric Ratios. (I) Sin α , Cos α , Tan α (Ii) Sin θ , Cos θ , Tan θ - Geometry

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Sum

In the given figure, `angle` PQR = 90° , `angle` PQS = 90° , `angle` PRQ = α  and `angle` QPS = θ   Write the following trigonometric ratios.
(i) sin α, cos α  , tan α
(ii) sin θ , cos θ , tan θ  

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Solution


(i) sin α = `"Opposite Side Of ∠ PRQ"/"Hypotenuse"` = `"PQ"/"PR"`

Cos α = `"Adjacent side of ∠ PRQ"/"Hypotenuse"` = `"RQ"/"PR"`

tan α = `"Opposite side of ∠PRQ"/"Adjacent side of ∠PRQ"` = `"PQ"/"RQ"`

(ii) sin θ , cos θ , tan θ  

Concept: Terms related to right angled triangle
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Balbharati Mathematics 2 Geometry 9th Standard Maharashtra State Board
Chapter 8 Trigonometry
Practice Set 8.1 | Q 4 | Page 104
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