Question

The hexagon below contains diagonals that form six congruent triangles.

The hexagon has 3 triangles on the top half and 3 triangles on the bottom half. Triangle A is at the bottom left, triangle B is at the top middle.

Which rotation about the center of the hexagon can be used to map
onto
?

A.

60° clockwise

B.

120° clockwise

C.

180° clockwise

D.

240° clockwise

Answer 1

B. 120° clockwise

Reason: The six congruent triangles are evenly spaced by 60° around the center. Triangle A (bottom left) is two positions clockwise from triangle B (top middle), so a rotation of 2 × 60° = 120° clockwise about the center maps A onto B.