Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number. Some answers are two words, they will be together with no spaces. Your words are: chord , circle , circumference , coefficient , collinear , combination, average , angle, area, absolute value, acute angle, acute triangle, additive identity