Two sides of a parallelogram are 30 and 20. One diagonal has a length of 40. What is the length of the other diagonal?
+36916 Parallelogram Law Sum of squares of four sides = sum of squares of diagonals ( Thanx, Chris!)
30^2 + 20^2 + 30^2 + 20^2 = 40^2 + x ^2 x = sqrt 1000 you can simplify from here !.....
+36916 Parallelogram Law Sum of squares of four sides = sum of squares of diagonals ( Thanx, Chris!)
30^2 + 20^2 + 30^2 + 20^2 = 40^2 + x ^2 x = sqrt 1000 you can simplify from here !.....
