The length of the side of a square is represented by x+2. The length of the side of an equilateral triangle is 2x. If the square and the equilateral triangle have equal perimeter,then the value of x is ?
Choose one.
A) 5 B) 7 C) 4 D) 8 E) 6
Since the side of the square is x + 2, its perimeter = 4 (x + 2) = 4x + 8   Since the side of the equilateral triangle is 2x, its perimeter = 3 * 2= 
<gadget id="calculator">3 * 2</gadget>
<output>6</output>
6x   Also, the perimeters of both are equal.   (i.e.) 4x + 8= 6x   (i.e.) 2x = 8 è x = 4.   Answer:4
<result>C</result>
The length of the side of a square is represented by x+2. The length of the side of an equilateral triangle is 2x. If the square and the equilateral triangle have equal perimeter,then the value of x is ?