In euclidean geometry, the sum of the measures of the interior angles of a pentagon is 540°. predict how the sum of the measures of the interior angles of a pentagon would be different in spherical geometry.
a.
the sum would be greater than 540°.
b.
the sum would still be 540°.
c.
the sum would be less than 540°.
d.
the sum would less than or greater than, but never equal to, 540°.

Which of the following would be a correct step in proving that triangle abc is congruent to triangle cda? a. use a protractor to measure the angles and show that all the corresponding angles are equal in measure. this will allow you to prove congruence by aaa. b. show that segment ab is parallel to segment cd and segment ad is parallel to segment cb. this will allow you to prove congruency by asa. c. show that is segment ab is perpendicular to segment ad. this will allow you to prove congruence by sas. d. none of the above.