Question

A rectangle is always mapped onto itself if it is rotated A) 60° B) 90° C) 120° D) 180°

Answer 1

180 which is answer D

Answer 2

Answer:- D is the right answer . A rectangle is always mapped onto itself if it is rotated 180°.

Explanation:-

• A shape has rotational symmetry if it maps onto itself under rotation at its center about a point .
• The order of rotational symmetry is the total number of times the figure maps onto itself during a rotation of 360°.

A rectangle has an order of symmetry =2

Thus a rectangle is always mapped onto itself if it is rotated
`(360^(\circ))/(2)=180^(\circ)`.