Posted by BethAnne on Monday, February 21, 2011 at 1:37pm.
The diagonals of a rhombus ABCD intersect at point E. If the sides of BC is equal to x + 9 and side DC is equal to 5x2, find x.
How would I set this upPlease give me some direction

Geometry7th grade  Helper, Monday, February 21, 2011 at 3:26pm
All sides of a Rhombus are congruent. Therefore, AB = BC = CD = AD
BC = x + 9
DC = 5x  2
BC = DC
x + 9 = 5x  2
4x = 11
x = ?