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9-60.
  1. Find the area and perimeter of each shape below. Show your steps and work. Homework Help ✎

    1. All angles are right angles.

Label the missing sides.

One method for calculating the area is to think of the shape as a large rectangle with a small (2 × 3) rectangle missing.

Perimeter = 40 units
Area = 65 − 6 = 59 units2

Area of a trapezoid.