Which are Thales's of Miletus five theorems of elementary geometry?

Answer 1

• A circle is bisected by its diameter
• Angles at the base of any isosceles triangle are equal.
• If two straight lines intersect, the opposite angles formed are equal.
• If one triangle has two angles and one side equal to another triangle, the two triangles are equal in all respects.
• Any angle inscribed in a semicircle is a right angle. This is known as Thales' Theorem.