finding the perimeter and the amount it would cost to...

Question

a rectangular auditorium measures 27 yards by 15 yards. the owner wants to install crown molding around the room where the walls meet the ceiling. the molding is sold for $128 per 5 - yeard section, and no partial sections are sold. how much will the molding cost?

Answer 1

The auditorium is 27 yards by 15 yards.

The perimeter is 2(L+W) =2(27+15)=2(42) = 84 yards

 

Since the molding is sold only in 5 yard sections he will

have to buy 85 yards worth.

85/5 = 17 sections at 5 yds/section

 

17(128) = $2,176