geometry crossword puzzle

123456
Across
  1. 4. the amount of space an object takes up
  2. 5. twice the radius
Down
  1. 1. half of the diameter
  2. 2. equal to the opposite side of the triangle/hypotenuse
  3. 3. equal to the adjacent side of the triangle/hypotenuse
  4. 6. equal to the opposite side of the triangle/adjacent side