Answer: C. Rectangles 1 and 3
Explanation:
1. By definition, two rectangles are similar if they have equal shape bot do not have equal sizes.
2. You can know it the rectangle 1 and 3 are similar by the following proportions:
![(l_1)/(l_3)=(w_1)/(w_3)](https://img.qammunity.org/2020/formulas/mathematics/high-school/yfrras1hu7ap65fipwv5q6qcjj3ezls9cm.png)
Where
is the lenght of the rectangle 1,
is the lenght of the rectangle 2,
is the width of the rectangle 1 and
is the width of the rectangle 2.
3. Subtitute values:
![(11m)/(14m)=(2.2m)/(2.8m)](https://img.qammunity.org/2020/formulas/mathematics/high-school/f20kmmqv4u6df39a59wz2b44va0hauhmq4.png)
![0.78=0.78](https://img.qammunity.org/2020/formulas/mathematics/high-school/hj4iovw3wyivwlkicon36ovi12ym7r433g.png)
4. Then, the rectangle 1 and 3 are similar.