# Scale Factor and the relationship to area and volume PRE TEST by xnWgjn5

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Scale Factor and the relationship
to area and volume
PRE TEST
Let’s review, what we know about
similar shapes.

1.75 cm                x
2.8 cm
5.6 cm

Solve for x
What is the scale factor?
Try again

8m
x
6m                 1.5 m

Solve for x
What is the scale factor?
The second
3.5 cm
is half as tall
5.6 cm
and half
as wide.
This means the
scale factor is ?.
1.75 cm
2.8 cm
If the next shape triples in size,
what is the area of the larger
shape.?
4       6
5
2m   Using the formula
6m      for scale factor, what is
the area of the red
18m    rectangle?
If the scale factor is ½
10 cm    what would be the
area of the smaller?
5 cm

10 cm
30 cm
The scale factor is 3, because
the size has tripled. What is the
volume of the larger prism?
5m
30 m              5m
10 m
What is the scale factor?

What is the volume of the small?
Now Check yourself !!
length   width   Scale

3        5       3

20       40      ½
Now Check yourself !!
length   width   height   Scale