Joshua is creating a series of rectangles, one inside the other. The length of the first rectangle, Rectangle A, is five inches. Joshua dilates Rectangle A about its center by a scale factor of two to get Rectangle B. He repeats this process using the same scale factor till he gets a rectangle of length 80 inches.

How many dilations did Joshua perform including the dilation of Rectangle A?
Answer
2
4
8
16

Question

Joshua is creating a series of rectangles, one inside the other. The length of the first rectangle, Rectangle A, is five inches. Joshua dilates Rectangle A about its center by a scale factor of two to get Rectangle B. He repeats this process using the same scale factor till he gets a rectangle of length 80 inches. 
 
How many dilations did Joshua perform including the dilation of Rectangle A?
Answer
		2
		4
		8
		16

anonymous · Answer

4.

Original = 5, 1st dialation = 10, 2nd dialation = 20 3rd dialation = 40, 4th dialation = 80!