Question

Tessa claims that a rotation of 90° clockwise about the center of some polygons will carry the polygon onto itself. Select two polygons that support Tessa's claim.

Answer 1

It's square and rhombus

Answer 2

When we rotate a geometrical shape by certain angle , the two preimage and Image are congruent, that is, neither the length of corresponding sides,nor Interior angles,as well as Area of two polygons does not change.

Claim Of Tessa

A rotation of 90° clockwise about the center of some polygons will carry the polygon onto itself.

The two Polygons are

1. Square----All four sides equal and all interior angle equal to 90 degree.

2. Equilateral Triangle=All three sides equal and all interior angles equal to 60 degree.