Respuesta :

Paounn

Answer:

12.5 square units.

Step-by-step explanation:

Step 1: draw the other diagonal, ACF. You have now divided the square into 8 triangles.

The area of the whole square is 10 by 10 square units, or 100. Each triangle will be 1/8th of the total surface, or 12.5 square units.