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Shapes A and B are similar. a) Calculate the scale factor from shape A to shape B. b) Find the value of w. Give each answer as an integer or as a fraction in its simplest form. 4 cm 7 cm A 12 cm 3 cm w
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Shapes A and B are similar.

a) Calculate the scale factor from shape A to shape B.
b) Find the value of w.
Give each answer as an integer or as a fraction in its simplest form.
4 cm
7 cm
A
12 cm
3 cm
w cm
B
9 cm

Shapes A and B are similar. a) Calculate the scale factor from shape A to shape B-example-1
User Hengrui Jiang
by
8.0k points

1 Answer

2 votes
a) 3/4
b) 5.25




a.
k is an unknown for scale factor

12 x k = 9
k = 9/12
= 3/4


b.
7 x (the scale factor) = w
7 x (3/4) = 21/4
= 5.25
User Jeferson Tenorio
by
8.2k points
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