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? please help
4

2

8

16

Answer 1

first dilation increases the length from 5 to 10
so lengths of these triangles increase in this way
5, 10 , 20 , 40.....

so can you answer the question now?

Answer 2

firsy dilation is 5--> 10

Answer 3

last is 40 --> 80

Answer 4

is it 8 ???

Answer 5

no , here are the dilations:
5 ---> 10
10----> 20
20----> 40
40-----> 80

Answer 6

4 ?? i think im starting to get u

Answer 7

thats right its 4

Answer 8

omg thank you so much :)

Answer 9

no probs