How do the expressions 72 / 9 and -72/ (-9) compare when they are evaluated?

a. they have different values and are different signs.

b. they have different values but are the same sign.

c. they have the same value but are different signs.

d. they have the same value and the same sign.

Ineed asap. 35 points. in order for two polygons to be similar, two conditions must be met. first, all pairs of corresponding sides must be in proportion. second, all corresponding angles must be congruent. prove that angle congruence is not enough, by itself, to establish that two polygons are similar. do this by describing or drawing two polygons that are not similar but whose corresponding angles are all congruent.