Question

the interior angles of a pentagon are x, 2x, 6x÷5, 12x÷5 and 12x÷5. Find all the angles of the Pentagon

Answer 1

Hiii,
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The sum of all angles = (2n-4)90
                                  =  540°.
then, 
           x +2x +1.2x + 2.4x + 2.4x = 540
          3x + 6.0x = 540
          9x = 540
          x= 60  
   then 
           x = 60°
           2x = 120°
           1.2x = 1.2*60 = 72°
           2.4x = 2.4*60= 144°
           2.4x = 144°
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ANKIT