This is a famous one-word proof written by the Hindu mathematician Bhaskara Acharya (1114-1185). What is the reasoning behind his proof?
Think about the first picture as two squares together. What are the new side lengths of the two squares? Close Tip
James Garfield (1831-1881) was the 20th president of the United States. Five years before becoming president, he discovered this proof of the Pythagorean theorem. What is the reasoning behind his proof?
Compute the area of the figure two ways -- first by finding and adding the area of the three triangles and second by using the formula for the area of a trapezoid (1/2 (sum of bases height)). What must be true of the two areas you computed? Close Tip