Calculate the area of a rectangle 25 meters 5 decimeters long and 15 meters 4 decimeters 6 centimeters wide.

394.23 square meters

Length = 25 meters 5 decimeters = 25.5 meters 

Breadth = 15 meters 4 decimeters 6 centimeters = 15.46 meters 

We know that the area of a rectangle = Length × breadth

= 25.5 × 15.46 = 394.23 square meters