The true stress (in MPa) versus true strain relationship for a metal is given by

Q. The true stress (in MPa) versus true strain relationship for a metal is given by

σ = 1020e ^0.4 

The cross-sectional area at the start of a test (when the stress and strain values are equal to zero) is 100 mm². The cross-sectional area at the time of necking (in mm²) is ________________(correct to two decimal places)

Ans: