The side lines of all lots; so far as possible; shall be at right angles to the street which the lot faces; or approximately radial to the center of curvature; if such street is curved. Side lines of lots shall be approximately radial to the center to curvature of a cul-de-sac on which the lot faces. (Ord. 1046 NCS §1 (part), 1972; prior code §22.7.402.)