Isaac's crossword

1234567
Across
  1. 2. same amount
  2. 4. having the same number
  3. 6. day and night are nearly equal in length
  4. 7. making different sets of numbers equal
Down
  1. 1. having all sides equal in length
  2. 2. to make equal
  3. 3. imaginary line around earth
  4. 5. having all angles equal in size