If all pairs of adjacent sides of a quadrilateral are congruent then it is called . (A) rectangle (B) parallelogram (C) trapezium, (D) rhombus​

Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k

Aball horizontally thrown from a cliff at 8m/s

An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.