A brittle material is used as a support plate. It has a fracture toughness of 10 MPa m/2. The plate has to withstand a tensile load of 200 kN. We have three non-destructive inspection techniques at our disposal for detection of internal flaws: X-ray radiography (can detect flaws greater than 0.25 mm); gamma-ray radiography (flaws greated than 0.20 mm) and ultrasonic inspection (flaws greater than 0.12 mm). Calculate the cross-sectional area of the plate based on different NDT testing methods.