Marketing provides a guiding philosophy for a company's strategic planning. this philosophy, known as focuses on creating customer value and building profitable relationships with important consumer groups.

The answer is the marketing concept.

Step-by-step explanation: The marketing concept revolves around the fact that companies focus on attending and satisfying customer needs. This is done by analysis of consumer needs which in turn will build profitable relationship with important consumer groups.  

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