Question

Triangles J K L and M N Q are shown. Triangle J K L is rotated slightly about point L to form triangle M N Q.

wo rigid transformations are used to map TriangleJKL to TriangleMNQ. The first is a translation of vertex L to vertex Q. What is the second transformation?

a reflection across the line containing LK
a reflection across the line containing JK
a rotation about point L
a rotation about point K

Answer 1

Rotation about point L.

Reason: After translating L to Q, you then rotate the translated triangle about that point (the image of L, i.e. Q) to align J and K with M and N. This is the described rotation about L.