41. The use of specific stiffness in cross-sectional area . 42. Larger bar sizes are based on the cross-sectional area of square bars that were formerly used. 43. The rod has length and cross-sectional area . 44. To determine the linear density of your quartz bar you need to know its cross sectional area . 45. The AWG of a stranded wire is determined by the cross-sectional area of the equivalent solid conductor. 46. A colour histogram can also be used to determine cross sectional area and thickness of the muscle. 47. In both die types ensure constant, uniform flow across the entire cross sectional area of the die. 48. The spaces would be cross-sectional areas . 49. In some applications wire sizes are specified as the cross sectional area of the wire, usually in mm? 50. What would be the fin height, no . of fins and cross sectional area of fin ? ??