A patch of grass in Noah's backyard is in the shape of a triangle, with two sides of length $8$8 feet and one side of length $11$11 feet.
Find the perimeter of the grassy patch.
A rectangular desk measures $5$5 feet long by $2$2 feet wide.
Find the perimeter of the desk.
A fence is to be constructed around a rectangular building site measuring $18$18 m by $32$32 m.
Find the total length of the fence.
An Olympic swimming pool is rectangular in shape. It is $50$50 m long, with a width of $25$25 m.
Find the perimeter of the pool.