Whats the missing angels if angle B= 63 degree and angle A= 77 degrees whats the answer

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?

Segment an is an altitude of right δabc with a right angle at a. if ab = 2, squared 5 in and nc = 1 in, find bn, an, ac.