Use stress$-$strain curves as shown below, which is for different scaffolds to answer the following questions

$*$Remember: cross section area of the tube: $A=r^2$

Assume $"$ C $"$ is cylindrical tendon tissue has an original length $(10\mathrm{.}52cm)$; the new length becomes $10\mathrm{.}50$ cm after it was compressed by $20$ kN $.$ Find the diameter of the scaffold

Estimate the fracture's strain and stress for $\text{'}\text{'}$A$"$

Estimate the Young's modulus of $"A"$ and $\text{'}\text{'}D"$

Rank the scaffolds from low to high tensile strength

What is the approximate plastic percent elongationof $"$C$"$ and $"$D$"$