State and prove the Pythagoras theorem.

State and prove pythagoras theorem .

State and prove : The converse of the Pythagoras theorem.

State converse of Pythagoras Theorem.

Without using the Pythagoras theorem, show that the points (4,4), (3, 5) and (-1, -1) are the vertices of a right angled triangle.

Theorem : If two tangents are drawn to a circle from an external point are equal. Use Pythagoras theorem to write a proof of the above theorem.

State and prove Bionomial theorem for any positive integer n.

State Thales theorem.