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Home > CC4 > Chapter A > Lesson A.1.2 > Problem A-24

A-24.
  1. Copy the following figures onto your paper. Then calculate the area and perimeter of each shape, assuming that all corners are right angles. Be sure to show all of your work. Homework Help ✎

  2. a.

    b.

To find the area, separate the shape into two boxes, find the area of the two sections, and then add them together for the total area.

16 · 12 = 192
13 · 35 = 455
Area = 192 + 455

area = 647

To find the perimeter (the distance around a shape) add up all of the sides of the shape.

perimeter = 16 + 12 + 19 + 13 + 35 + 25

perimeter = 120

Follow the same strategy outlined in part (a).