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22, D PATIL, b-3, isosceles tringte ABc having, its base, An, AB=50 mm ¢ altitude=70mm, is resting on the rp, Burface ;} incdlined to vp at an, on its base. Draw Hhe pro jection of plane when its, the projection of plane when its, angle, of 50° to H.P, of 450 4 its base AB which is, making, an angle, on the v.P, vP, vest, 70, A1, ZYPAI, 3LVP, 50, B,, BI, メ, A'B, c', A'B, しMp, 450, ○ノ, c', 9., 2022/1/15 11:15