4

Part of 2019 Adygea Teachers' Geometry Olympiad

Problems(1)

trapezoid conditions (2019 Adygea Teachers' Geometry Olympiad p4)

Source:

From which two statements about the trapezoid follows the third: 1) the trapezoid is tangential, 2) the trapezoid is right, 3) its area is equal to the product of the bases?

geometrytrapezoidtangentialright angletrapezium