∠D = ∠R

∠E = ∠S

∠G = ∠Q

∠F = ∠P

∠D = ∠G

∠E = ∠F

∠R = ∠S

∠Q = ∠P

∠D = ∠P

∠E = ∠Q

∠F = ∠R

∠G = ∠S

∠D = ∠S

∠G = ∠P

∠E = ∠R

∠F = ∠Q

$\frac{\text{PQ}}{DE}=\frac{QR}{EF}=\frac{RS}{FG}=\frac{SP}{GD}$

$\frac{\text{PQ}}{GD}=\frac{QR}{FG}=\frac{RS}{EF}=\frac{SP}{DE}$

$\frac{DE}{RS}=\frac{EF}{SP}=\frac{FG}{PQ}=\frac{QR}{GD}$

16

4

12

3

12

18

24

9

No; corresponding angles are not congruent.

$\Delta HJK\sim\Delta LMN$

Yes;

No, corresponding sides are not proportional.

No, corresponding angles are not congruent.

Yes; $\Delta EFG\sim\Delta DFH$

No, corresponding sides are not proportional.

100 cm²

90 cm²

86 cm²

30 cm²

2

 $\frac{3}{4}$  

6

 $\frac{4}{3}$