What geometric properties are illustrated in the diagram?

Geometric Properties Illustrated:

• The diagram shows an isosceles triangle KMN, where KT is the altitude to the base MN.
• In an isosceles triangle, the altitude to the base is also the median and the angle bisector.
• This means that T is the midpoint of MN, so MT = TN.
• Also, the angle $$\angle$$ KTM = $$\angle$$ KTN.
• The right angle symbol at T indicates that KT is perpendicular to MN.

Answer: The diagram illustrates properties of an isosceles triangle, specifically that the altitude to the base is also the median and angle bisector, and that the base angles are equal. The tick marks on MT and TN indicate they are equal in length, and the square symbol at T indicates that KT is perpendicular to MN.