Math Crossword

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Across
  1. 2. b2-4ac greater than 0
  2. 6. bsqaure-4ac
  3. 7. area of triangle is 0
  4. 8. a1/a2=b1/b2not equal c1/c2
Down
  1. 1. having same shape and size
  2. 3. every composite no. can be expressed as product of primes
  3. 4. if line parallel to one side of a triangle, it divides other 2 sides in same ratio
  4. 5. 2 figures having same shape