Tutorial $1$

Compare Aluminum, PET and Polystyrene $($Highest $($H$),$ Medium $($M$)$ and Lowest $($L$))$ in terms of weight, tensile strength and toughness in the first table $($no quantitative values asked, just write letter H or M or L for each property$).$ In the second table, give evidence for your rank with quantitative values from literature for density $(\frac{g}{c}{m}^3),$ tensile strength $($ MPa $)$ and fracture toughness $($MPa$.m^{\frac{1}{2}})$ for these materials.

$\backslash$table$[[,$Aluminum,PET,Polystyrene$],[$Weight:$,,,],[$T$.$ Strength:,,,$],[$Toughness:$,,,],[$Evidence:$,,,],[$Density:$,,,],[$T$.$ Strength:,,,$],[$Fracture$,,,],[$Toughness:$,,,]]$

Which fraction is shown on the below set of samosas on the triangular plate?