Does anyone know how to solve this?

Answer:
The area of the actual court is 162 m.
Step-by-step explanation:
Using the key given, we know that 1 inch = 6 meters.
The drawing is 3 inches long, so the actual court is 18 meters long.
The drawing is 1 inch and 1/2 and inch wide, so the actual court is 9 meters wide. (A half inch would be 3 meters, because a full inch is 6 meters.)
length x width
9 * 18 = 162