<prompt> 3dimensional information in IOPAs can be taken by:Examining 2 films projected at right angle to each otherExamining 2 films projected at different anglesCLARK ruleAll of the above  <response>: Image in a X-ray is a dimensional information. To exactly locate the position of an object a three dimensional information is necessary. To obtain this 2 methods can be usedexamining two films projected at right angles to each other.examining two films projected at different angles called as CLARK Rule or Buccal object rule or Tube shift metro or LOB rule. 