PUZZLE 1

1234567891011121314151617
Across
  1. 4. is a fraction that represent a part of a whole
  2. 5. of a fraction is obtained by inverting it upside down
  3. 6. is a triangle in which only two sides are equal
  4. 8. have a common vertex and a common arm but no common interior points
  5. 9. is a triangle in which all sides are equal
  6. 13. is the side opposite to the right angle
  7. 14. is the other central tendency or representative value of data
  8. 17. is a line that intersects two or more line at a distinct point
Down
  1. 1. is a pair of adjacent angles whose non common sides are opposoite rays
  2. 2. is a representation of numbers using bars of uniform widht
  3. 3. when the sum of two angles is 180'
  4. 7. when the sum of two angles is 90'
  5. 10. is a condition on a variable such that two expression in the variable should have equal value
  6. 11. is the most common value of a group data
  7. 12. is a combination of a whole and a proper fraction
  8. 15. are a bigger collection of numbers which is formed by whole numbers and their negatives
  9. 16. connects a vertex of a triangle to the mid point of the opposite side