Question

Which rectangles are similar polygons

Answer 1

Except the first one rest are similar.

Rule is

• Ratio of sides should be same

For 1st one

`\\ \tt\hookrightarrow (18.55)/(10.5)=1.76`

`\\ \tt\hookrightarrow (5.3)/(3.5)`

`\\ \tt\hookrightarrow 1.514`

• Not same

Answer 2

All of them EXCEPT 18.55 x 10.5

Explanation:

All of them EXCEPT 18.55 x 10.5

The way you work this out is to divide the length by the width for bot the larger and smaller rectangles and see if the ratio is equal.

For example,

169 ÷ 49 = 13/7

1.3 ÷ 0.7 = 13/7

So these are similar polygons