SA2 revision test no.3 class X

                

             Answers 

 

              1 .Sides are 5√2, 5, 5 units .area of triangle = 12.5 sq.units

              2.  y =  -1, 7   OA =  5 , √793

              3. P(3, -2)  and K = -8

              4. centroid = (16/3,6)

 

             5. Area = 72 sq.units

             8. sides are √17 units each and diagonals are √34 units each