Pentagon g was dilated from the origin by a scale factor of one half to create pentagon g′. which statement explains why the pentagons are similar? dilations preserve side length; therefore, the corresponding sides of pentagons g and g′ are congruent. dilations preserve betweenness of points; therefore, the corresponding sides of pentagons g and g′ are proportional. dilations preserve orientation; therefore, the corresponding angles of pentagons g and g′ are congruent. dilations preserve collinearity; therefore, the corresponding angles of pentagons g and g′ are congruent