How does the criteria for triangle congruence (asa, sas, and sss) follow from the definition of congruence in terms of rigid motions?

If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab