1. Ayoze glanced at the sheet of paper. "Just a triangle with sides of 5 inches, 5 inches and 8 inches," he said. "Is that all?"
"No, Dad. Look," Emilio replied, "the sides are all whole numbers, and the area in square inches is just two-thirds the perimeter in inches."
"That is something special then," Ayoze conceded. "What other triangles work exactly that way?"
Well?
