CROSSWORD PUZZLE-1

12345678910
Across
  1. 2. successor of CXLIX in Roman numerals
  2. 4. digit has same place value and face value in85267.
  3. 5. ___ lakhs make a billion
  4. 6. a tool used to measure and draw angles
  5. 7. a whole number greater than 0 that has exactly two factors one and itself
  6. 9. a 3-sided polygon
Down
  1. 1. a metric unit of length.1000 of these = 1 metre
  2. 3. a fraction that has 1 as its numerator
  3. 8. an angle with a measure of 90 degrees
  4. 10. a part of a line that has one endpoint and goes on forever in one direction