,to
5.18 Textbook of Enginnering Drawing------------------
(a)b' b1' b'
f f b' f f/
,j b
2 ' b (^2) '\
X Y X YX
a b1 a a
b b b2
(b) (c) (d)
Fig. 5.21 Line Inclined to both the Planes
- The points bl and b lie on a single projection
- The projections albl and ab make angles a. and /3 with xy, which are greater than e and cII.
The angles a. and /3 are known as apparent angles.