Q108 of 158 Page 159

In Fig. 6.30, find the value of x.


Formula Used/Theory:-


Angle sum property


Sum of all angles of triangle is 180°


In the right angled triangle where x lies


One angle is 55°


Other angle is x


And central angle is 90°


Then by angle sum property


55° + x + 90° = 180°


x + 145° = 180°


x = 180° - 145° = 35°


Result:- the value of x comes out to be 35°


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