Answer:
[tex]27[/tex]
Step-by-step explanation:
A rhombus is a quadrilateral where all sides are equal in length. This means that [tex]\overline R \overline O = \overline O \overline C[/tex].
From this, we can write:
[tex]2x-15=x+6[/tex]
[tex]x-15=6[/tex]
[tex]x=21[/tex]
Now that we have solved for [tex]x[/tex], we can find the length of [tex]\overline R \overline O[/tex] by using substitution:
[tex]2x-15=2(21)-15[/tex]
[tex]=42-15[/tex]
[tex]=27[/tex]
Hope this helps :)
