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Mathematics

Find 'x', if :

Find 'x', if : Solution of Right Triangles, Concise Mathematics Solutions ICSE Class 9.

Trigonometric Identities

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Answer

tan 30°=PerpendicularBase13=20xx=20×3x=34.64\text{tan 30°} = \dfrac{Perpendicular}{Base}\\[1em] ⇒ \dfrac{1}{\sqrt3} = \dfrac{20}{x}\\[1em] ⇒ x = 20 \times \sqrt3\\[1em] ⇒ x = 34.64

Hence, x = 34.64.

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