Question
The figure shows a rectangle JLMK being folded along JB. Given that ∠BJL = 21°, find
  1. ∠r
  2. ∠x
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

The figure shows a rectangle JLMK being folded along JB. Given that ∠BJL = 21°, find
  1. ∠r
  2. ∠x