Question

The two figures are regular octagons.

What is the scale factor, written in decimal form?



Two regular octagons of different sizes with an arrow pointing from the larger image on the left to the smaller image on the right. Image on the left is labeled fifteen, and image on the right is labeled nine.

Answer 1

Sorry :/ idk 1 second @Lyrae

Answer 2

\_/ \_/
15 9

Answer 3

\_/= bottom of of octgon

Answer 4

Both the octagons are regular, so they are also simillar. The arow means that the smaler octagon should be expressed in terms of the larger one.

This gives us
side_of_larger * scale_factor = side_of_smaller
scale_factor = side_of_smaller/side_of_larger = 9/15 = 3/5