RAMA RAO, CH., VIJAYAKUMAR, V., VIRUPAKSHI, G. and RAO, M.B.S.V. A Note on the Interpretation of Magnetic Anomalies of Infinite Thin Sheets by Using Relation Figures, Geophysical Prospecting 33,746752.The concept of relation figures is utilized in the case of a thin infinite sheet for identification and determination of the causative source geometry, and its various parameters. The plot of A T versus AV is a conic, the plots between the respective symmetric components and the respective asymmetric components are straight lines, and the resulting diagram between the first horizontal versus the first vertical derivative of either A T or AV is a cardioid.