Exploring Congruence in Geometry

The video tutorial covers the concept of congruence, focusing on segments, angles, and polygons. It explains the properties of congruent and non-congruent figures, including the use of symbols to denote congruence. The tutorial also discusses congruent segments and angles, congruent polygons, and lines of symmetry. Methods for identifying congruence in figures are demonstrated, and the characteristics of regular polygons are explored. The session concludes with an invitation for further learning and questions.

What does the congruent symbol look like?

• A plus sign with a squiggly line over it

• An equal sign with a squiggly line over it

• An equal sign with a line through it

• A squiggly line with a line through it

Tags

CCSS.8.G.A.2

Which of the following is true about non-congruent figures?

• They have the same size and shape

• They must be totally different shapes

• They can be the same shape but different sizes

• They have the same size but different shapes

Tags

CCSS.8.G.A.2

What indicates that two segments are congruent?

• They have the same length

• They have the same number of lines of symmetry

• They have the same angle

• They have the same number of sides

Tags

CCSS.8.G.A.2

How can you tell if two angles are congruent?

• They have the same measure

• They have the same number of sides

• They have the same number of lines of symmetry

• They have the same length

Tags

CCSS.8.G.A.2

What defines a polygon?

• A closed figure with at least three sides that do not cross

• A figure with curved sides

• A figure with at least four sides

• A figure with parallel sides

Tags

CCSS.2.G.A.1

How many lines of symmetry does a regular polygon have?

• Equal to twice the number of sides

• Equal to the number of angles

• Equal to the number of sides

• Equal to half the number of sides

Tags

CCSS.4.G.A.3

What is one method to determine if two figures are congruent?

• Compare their colors

• Place one on top of the other to compare measurements

• Check if they have the same number of sides

• Measure their perimeter

Tags

CCSS.8.G.A.2

When naming two congruent triangles, how should you name them?

• In order of their corresponding angles

• In order of their perimeter

• In order of their corresponding sides

• In alphabetical order

Tags

CCSS.8.G.A.2

How many lines of symmetry does an equilateral triangle have?

• Two

• Four

• Three

• One

Tags

CCSS.4.G.A.3

What is the measure of each interior angle in a regular hexagon?

• 60 degrees

• 120 degrees

• 108 degrees

• 90 degrees