Write a Pythagorean triplet whose smallest member is $14$.

Write a Pythagorean triplet whose smallest member is $16$.

Write a Pythagorean triplet whose smallest member is $20$.

Evaluate $(38{)}^2–(37{)}^2$.

Evaluate $(75{)}^2–(74{)}^2$.

Evaluate $(105{)}^2–(104{)}^2$.

Evaluate $(218{)}^2–(217{)}^2$.