A piece of tile is in the shape of a right triangle. The base is 1 1/2 centimeters, and the height is 2 1/2 centimeters. What is the area in square centimeters?

The area of a right triangle is calculated using the formula:

Area = 1/2 * base * height

Substitute the given values:
Area = 1/2 * 1 1/2 * 2 1/2
Area = 1/2 * 3/2 * 5/2
Area = 3/4 * 5/2
Area = 15/8
Area = 1 7/8 square centimeters

Therefore, the area of the tile is 1 7/8 square centimeters.