maths

123456
Across
  1. 2. opposite the right angle in a triangle
  2. 5. a three sided and three cornered angle
  3. 6. also a ratio
Down
  1. 1. angle a 90 degree angle
  2. 3. a square + b squared + c squared
  3. 4. ratio
  4. 5. third of three of the ratios