angle4dAn Isosceles trapezoid, as shown above, has left and rht sides of equal length that join to the base at equal angles.. The Kite. Hey, it looks like a kite (usually).. It has two pairs of sides:.Related Triangle | Pythagorean Theorem . Rht triangle. A rht triangle is a type of triangle that has one angle that measures 90°. Rht triangles, and the relationships