A set of points forming a closed figure, every point of which is a fixed distance from a given center best defines which shape? * Rectangle

Square

Rhombus

Circle

circle

Step-by-step explanation:

because each point is the same from the center

step-by-step explanation:

my butt

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc