Question 280489
Is this a trick question?
The area of the corral doesn't change because a silo is built in it.
Part of the corral is now occupied by a silo.
so the corral is still 23m by 18m.

A living room does not change size because you put a large sofa in it.
A car doesn't get smaller because you fill the trunk up with money bags.
A refrigerator doesn't change size because you fill it with food.