[" 109.Compliment of "72^(@)40''" is "],[[" (a) "160^(@)20'," (b) "27^(@)20'],[" (c) "17^(@)20'," (d) "12^(@)40']]

The complement of 72^@40'

Find the number of sides of a regular polygon whose each exterior angle measures : (i) 40^(@), (ii) 36^(@) , (iii) 72^(@) , (iv) 30^(@)

If x % of (12)/5 is (18)/(25), then x= (a) 30 (b) 40 (c) 72 (d) 50

Find (a) 35-(20) (b) 72-(90) (c) (-15) -(-18) (d) (-20) -(13) (e) 23-(-12) (f) (-32)-(-40)

Find (a) 35-(20) (b) 72-(90) (c) (-15) -(-18) (d) (-20) -(13) (e) 23-(-12) (f) (-32)-(-40)

Compare atomic radii of Zr (Z = 40) and Hf (Z = 72).

Evaluate the following : (sin72^(@)+cos18^(@))(sin72^(@)-cos18^(@))

What is the value of cot^(2) 72^(@)-cosec^(2)72^(2) ?