Section+4.1

and pi always appears in at least one of the three angles ||  || correct ... it is impossible to add three integers to obtain the number PI, which is irrational. ||
 * Student Answers || Student Feedback || Teacher Feedback ||
 * 57. true ||  || correct ||
 * 58. false because pi is not an integer
 * 59. C ||  || correct - conversion formula ||
 * 60. A ||  || incorrect - answer is B

radian measure of an angle is the ratio of the arc length to the radius length. ||
 * 61. B ||  || correct - tough problem! ||
 * 62. C ||  || correct ||