Copy of Pythagorean Theorem trapezoid proof by President Garfield
James Garfield (1831 - 1881) was the twentieth President of the United States.
In 1876, discovered this demonstration of the Pythagorean Theorem
while he was still a seated member of Congress.
- 適合年齡
- 12 – 19+
- 語言
- English (United States)
