Question

How do I do this problem?

Answer 1

A ratio is really just a fraction that looks cool.
1)So, find all the quadrilaterals (a shape that has four sides.)

2)There are 12 quadrilaterals out of the 30 shapes in all.

3) Now put it as a fraction to simplify
12/6 2
— = —
30/6 5
4) You can change it back to a ratio now that it is simplified
2:5 (B)

Answer 2

so a quadrilateral is a figure with 4 sides. So looking at the picture I see 5 rhombi and 7 squares. So all together thats 12 quadrilaterals  

So to find the ration you have to do:

amount of thing: whole

so in this case it would be

12:24

which you can simplify

normally you'd simplify to 1:2 but that doesn't seem like an option so I'd go with the one closest to that ratio