A rectangle with height x and width 2 x has the same perimeter as an equilateral triangle with side length 10 . What is the area of the rectangle?

Answer Choices
A. 18
B. 50
C. 25
D. 200
E. 100
A rectangle with height x and width 2 x has the same perimeter as an equilateral triangle with side length 10 . What is the area of the rectangle?
Answer Choices
A. 18
B. 50
C. 25
D. 200
E. 100