| In the following ray diagram the correctly marked angle are: |
 |
| (a) \[\angle i\] and \[\angle e\] |
| (b) \[\angle A\] and \[\angle D\] |
| (c) \[\angle i,\,\angle e\] and \[\angle D\] |
| (d) \[\angle r,\,\angle A\] and \[\angle D\] |
Answer:
(d) \[\angle r,\,\angle A\] and \[\angle D\]
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