### Home > CC1 > Chapter 5 > Lesson 5.3.4 > Problem 5-101

5-101.

Choose any strategy to find the area of each shape below. Use the information in the Math Notes boxes for help. Assume that the shape in part (a) is a parallelogram and that the shape in part (b) is a trapezoid. 5-101 HW eTool (Desmos) Homework Help ✎

Form a rectangle using the left portion of the parallelogram. Then find the area of the rectangle.

When the trapezoid is copied and rotated, a parallelogram can be formed.

Form a parallelogram using the rotated trapezoid.

Now find the area of the parallelogram.

Use this area to find the area of the original trapezoid.

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