LESSON 4 Helipads for Antopolis

Myrna Myrmidon's Aunt Penny likes to fly helicopters. When she flew to Ladybug Airport, she landed her helicopter on a helipad. The helipad at Ladybug Airport is 4 inches long and 2 inches wide.

 

 

  1. Ladybug Airport is building a new helipad. They are also buying new perimeter lights. The lights are attached to a wire that goes around the entire helipad. How long does the wire need to be to fit around the helipad they already have?
  2. What is the area of this helipad?
While the construction crew at Ladybug Airport waited for the lights to be delivered, they discussed the new helipad. They knew that the perimeter of the helipad could not be changed since the wire had already been ordered. However, they could change the helipad's area. The head construction worker reminded them that the helipad needed to be a rectangle made with square-inch tiles.
  1. Help the construction crew.
    1. Are there other rectangles besides the one shown above that have the same perimeter as the current helipad at Ladybug Airport? Use square-inch tiles to help you.
    2. What is the area of each of the rectangles you found?
    3. Which rectangle would you recommend for the new helipad? Why?