In a Parallelogram, two adjacent sides are of 12cm and 14 cms respectively, a diagonal is of 16cm then the other will be?

• According to parallelogram law:-The sum of the squares of a sides is equal to the sum of the squares of the diagonal.
  so,
  12^2+12^2+14^2+14^2=d^2+16^2 =>d=20.59.
• 9 years agoHelpfull: Yes(13) No(0)
• Parallelogram law,
  2*(side1)^2+2*(side2)^2=(d1)^2+(d2)^2
  2*(12)^2+2*(14)^2=16^2+x^2
  by solving x=20.59
• 9 years agoHelpfull: Yes(5) No(0)
• length of second diagonal= 20.59cm
• 9 years agoHelpfull: Yes(3) No(0)
• parallelogram property :
  2*(side1^2)+2(side2^2)=diagonal1^2 +diagonal2^2
  2*12*12+2*14*14=16*16+x^2
  x=20.59
• 9 years agoHelpfull: Yes(2) No(1)
• ans =19.80cm
  
• 9 years agoHelpfull: Yes(0) No(7)