Respuesta :
To verify whether the diagonals are perpendicular to each other, we find the slope of each segment and we can see that the slopes should be opposite reciprocals of each other.This means, these segments are really perpendicular. This theorem can be verified through congruent angles present in the quadrilateral.
@meerkat18 what is the theorem that is being verified through congruent angles present in the quadrilateral?