Answer:
48units
Step-by-step explanation:
Find the diagram of the rhombus attached
From the diagram, LM = MN
Hence;
3x - 3 = x + 7
Find x
Add 3 to both sides
3x - 3 + 3 = x + 7 + 3
3x = x + 10
3x - x = 10
2x = 10
x = 10/2
x = 5
LM= 3x - 3
LM = 3(5) - 3
LM = 12
Since LM = MN, then MN = 12
Since all the sides of the rhombus are equal then;
Perimeter of the rhombus = LM + MN + NO + OL
Perimeter of the rhombus = 12 + 12 +1 2 + 12
Perimeter of the rhombus = 48units
