1.

See adjoining figure. Find RP and PS using the information given in ∆PSR.

Answer»

In ∆PSR, ∠S = 90°, ∠P = 30° [Given] 

∴ ∠R = 60° [Remaining angle of a triangle]

∴ ∆PSR is a 30° – 60° – 90° triangle.

RS = 1/2 RP [Side opposite to 30°]

∴ 6 = 1/2 RP

∴ RP = 6 × 2 = 12 units

Also, PS = √3/2 RP [Side opposite to 60°]

= √3/2 × 12

= 6√3 units

∴ RP = 12 units, PS = 6√3 units.



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