The essentials of descriptive geometry . a right trianglewhose base is equal to thedistance a is from the planof the axis, or ax, and whosealtitude is equal to the dis-tance a is below the G. L.,or the distance A is belowthe plane of the axis, or the plane of revolu-tion is perpendicular to the axis, A will fall on a per- ^. --^ pendicular through a to mn, ^^°- 36- either on the right or the left of MN, a distance fromMN equal to an, or the hypotenuse of a triangle whose base is ax and whose altitudeis ag. 33. Fig. 36 shows this sameproblem worked out whenthe axis MN Hes in H butobliq
The essentials of descriptive geometry . a right trianglewhose base is equal to thedistance a is from the planof the axis, or ax, and whosealtitude is equal to the dis-tance a is below the G. L.,or the distance A is belowthe plane of the axis, or the plane of revolu-tion is perpendicular to the axis, A will fall on a per- ^. --^ pendicular through a to mn, ^^°- 36- either on the right or the left of MN, a distance fromMN equal to an, or the hypotenuse of a triangle whose base is ax and whose altitudeis ag. 33. Fig. 36 shows this sameproblem worked out whenthe axis MN Hes in H butoblique to V. In this caseAh will be found on a per-pendicular from a to mnwhose length is equal to thehypotenuse of a triangle whosebase is ao, and whose altitudeis the distance from a to theG. L., or ag. Fig. 37 shows a similarproblem worked out with thepoint revolved into V about an axis which lies in V. In thiscase the point A falls on a perpendicular to mn whose length isequal to the hypotenuse of a triangle whose altitude is equal to. Fig. 37. 40 ESSENTIALS OF DESCRIPTIVE GEOMETRY the distance a is from the G. L., and whose base is the dis- Ah tance ao
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Keywords: ., bookcentury1900, bookdecade1910, bookidcu3192400462, bookyear1915
