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Angle Sum Property of a Triangle

In the Fig. 8...

Question

In the Fig. 8.12 $∠ R$ is the right angle of $Δ P Q R$ write the following ratios.
(i) sin P
(ii) cos Q
(iii) tan P
(iv) tan Q

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Solution

REF.image
$(i) s i n P = \frac{Q R}{P Q}$
$(i i) c o s θ = \frac{Q R}{P Q}$
$(i i i) t a n P = \frac{Q R}{P R}$
$(i v) t a n θ = \frac{P R}{Q R} .$

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