Help with line graph

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?

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.