Which of the following is an example of an exerting force? a child running through a field
a train speeding down a track
a carpenter hammering a nail
an airplane speeding down the track

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