Answer:
Ben needs 30 meters of fence.
Explanation:
Ben has a rectangular area 9 meters long and 6 meters wide.
He wants a fence that will go around it .
To calculate how many meters of fence Ben will need, we will find the perimeter of the area.
Perimeter = 2(length + width)
P = 2( 9+6 )
= 2 × 15
= 30 meters
Ben needs 30 meters of fence.