Chapter 7 Triangles, exercise 7.1, Q5
Line l is the bisector of an angle ∠ A and B is any
point on l. BP and BQ are perpendiculars from B
to the arms of ∠ A (see Fig. 7.20). Show that:
(i) ∆ APB ≅ ∆ AQB
(ii) BP = BQ or B is equidistant from the arms
of ∠ A.
