Athree sided regular polygon is called equilateral. true or false

True.

Step-by-step explanation:

Since, A regular polygon is a polygon that is equi-angular (all angles are equal in measure) and equilateral (all sides have the same length).

Since, If a three sided polygon is a regular polygon.

⇒ The measurements of its all angles are same.

Therefore, measurement of its all angles is 60° ( because 180°/3)

⇒Also, It has the same edges.

Since, It is following the conditions of equilateral triangle.

Therefore, It must be an equilateral triangle.

step-by-step explanation:

$9.89

step-by-step explanation:

9.90 = p x .06 x .25 (3/12 changed to a decimal)

9.90 = p x 0.015

9.90 - 0.015 = p

9.89 = p