Question

Rectangle A measures 12 cm by 3 cm. Rectangle B is a scaled copy of Rectangle A. Select all of the measurement pairs that could be the dimensions of Rectangle B.
A. 6 cm by 1.5 cm
B.10 cm by 2 cm
C. 13 cm by 4 cm
D.18 cm by 4.5 cm
E.80 cm by 20 cm

Answer 1

Answer E and A could be scale factors for rectangle B

Answer 2

Answer: Options 'A' and 'D' are correct that could be the dimensions of Rectangle B.

Step-by-step explanation:

Since we have given that

Dimensions of Rectangle A is given by

12 cm by 3 cm.

And Rectangle B is a scaled copy of rectangle A.

So, by options we can check :

A. 6 cm by 1.5 cm

$\dfrac{12}{6}=2\\\\and\\\\\dfrac{3}{1.5}=2$

so, it is scaled dimension copy of rectangle A.

D.18 cm by 4.5 cm

$\dfrac{12}{18}=0.67\\\\and\\\\\dfrac{3}{4.5}=0.67$

So, it is also scaled copy of rectangle A.

Hence, Options 'A' and 'D' are correct that could be the dimensions of Rectangle B.