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Find the value of x.(a) 170/2°(b) 2/170°(c) 170°(d) 70°I have been asked this question during an interview.This intriguing question comes from Sum of Measures of the Exterior Angles of a Polygon in portion Quadrilaterals of Mathematics – Class 8

Answer»

Correct OPTION is (a) 170/2°

Easiest explanation: Here we will USE the property of EXTERNAL angles.

Therefore (x-10)°+x=180°

Therefore x-10+x=180°

Therefore 2x=170

Therefore x=170/2.



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