Answer:
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Step-by-step explanation:
what triangles friend?
anyways congruent means equal look for side shapes or number that are equal to help you in your questions you put pictures up and I might be able to edit and help till then remember congruent means equal sides usually
question 2 answer you wrote correct
question 3 answer is 20
yes
since its more than 90 dgree
No, 55 and 101 are not multiples of 2, 3 and 9
idk how to help you with that .