game on Mathematicians and their achievement

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Across
  1. 3. he was the founder of trigonometry also a well known mythologist
  2. 5. he wrote the best treaty called Almagest
  3. 8. this used theorem is to calculate the hypotenuse in a right angled triangle.
  4. 9. formula hero of Alexandria discovered
Down
  1. 1. theorem this theorem was given by Thales of Miletus.
  2. 2. Father of geometry. His famous contribution is referred as Euclidean geometry.
  3. 3. she was the first women to give the importance of Math.
  4. 4. he was the only mathematician who put efforts to calculate earths circumference and to calculate earth’s axis tilt.
  5. 6. father of algebra
  6. 7. his contribution in mathematics is known as the invention of compound pulleys, antiquity and screw pump.