Which mathematical symbol would best fill in the blank to compare the two real numbers?

square root of 2 blank 1.8 repeating

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Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?

Vertical angles must check all that apply