Across 3 is a statement that two ratios are equal 6 an angle
     Across  3. is a statement that two ratios are equal  6. an angle that measures 180 degrees  7. is a comparison of two quantities using a quotient  Down  1. is a ready-made equation  2. is algebraic expression related by symbol like   4. an equation with no solution  5. an angle that measures 90 degrees 
  
  Solution
The answers for Across are:
3. proportional
6. straight angle
7.ratio
Down:
1. quadratic equation
2. inequality
4. inconsistent equation
5. right angle
It would have been much more easier if the picture of the crossword puzzle was attached.

