Polygons, Lines of Symmetry and Congruence

How many lines of symmetry are there on an equilateral triangle?

• 0

• 1

• 2

• 3

Which statement is always true about two congruent polygons?

• Corresponding sides are always congruent.

• Corresponding angles are always right angles.

• Corresponding sides are always parallel.

• They are the same shape but different size.

Tell whether the two figures are congruent.

• Yes, same size and same shape

• No, same shape but different sizes

• No, different size and different shapes

This is a square (a quadrilateral) What type of polygon is it?

• Regular Polygon

• Irregular Polygon

How many lines of symmetry are there on a regular decagon?

• 8

• 9

• 10

• 12

How many lines of symmetry does this shape have?

• 2

• 4

• 6

• 8

(a)  

• A

• B

• C

• D

• is symmetrical

• not symmetrical

How many lines of symmetry does this shape have?

• 1

• 2

• 4

• 8

How many lines of symmetry does the picture have? 

• 0 lines of symmetry

• 1 line of symmetry

• 2 lines of symmetry

• 4 lines of symmetry