Q3 of 45 Page 43

In then find RS and ST.



As, ∠S = 90°, and ∠T = 30° and RT = 12 cm is given.


Clearly, RTS is a 30°-60°-90° triangle.


We know, Property of 30°-60°-90° triangle i.e.


If acute angles of a right angled-triangle are 30° and 60°, then the side opposite


30° angle is half of the hypotenuse and the side opposite to 60° angle is times of hypotenuse.



And



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