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Question 1
Mathematical thinking is making rational __________________ with your own thoughts using only definitions, properties, theorems, and postulates.

Question 2
A regular polygon has the same number of lines of symmetry as the number of sides. For example, a pentagon has 5 sides and 5 lines of symmetry. The number of degrees apart each line of symmetry is equals 360 degrees divided by the number of sides. The pentagon's lines of symmetry are 360/5 degrees apart, or 72 degrees apart. How many degrees apart are the triangle's lines of symmetry?
60 degrees
180 degrees
90 degrees
120 degrees

Respuesta :

The triangle lines of symmetry are 60 degrees apart option (A) 60 degrees is correct.

What is a regular polygon?

A polygon is a geometric figure with a finite number of sides in two dimensions. On the sides or edges of a polygon, straight-line segments are joined end to end to form a closed shape. The vertices, also known as corners, are the points where two line segments meet and form an angle.

As we know,

The act of using mathematics to address issues in the actual world is known as mathematical thinking.

As the pentagon has 5 sides and 5 lines of symmetry.

The pentagon's lines of symmetry are apart 72(360/5) degrees apart.

Similarly in the triangle, the sum of the interior angle is 180 degrees

The triangle lines of symmetry are 60(180/3) degrees apart.

Thus, the triangle lines of symmetry are 60 degrees apart option (A) 60 degrees is correct.

Learn more about the regular polygon here:

brainly.com/question/11810316

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