Which fact you prove the isosceles triangle theorem, which states that the base angles of any isosceles triangle have equal measure?

What is the exact area of a circle with a diameter of 50 centimeters? a.87.9 square centimeters b.379.9 square centimeters c.1962.5 square centimeters d.4923.5 square centimeters

1. are the triangles similar and if so why? what is the value of x? show your work.

Plz ( true - false) all triangles have interior angles whose measure sum to 90.