Grade 6 Mathematics · Unit 5: Solve Area, Surface Area, and Volume ProblemsStandard 6.GR.1

Lesson 5.15.1 Small Group · Group 2

Group 2 · Set BSecond challenge form · new problems, same idea

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Learning target I can find the area of a parallelogram using base × height, explain why the method works, and use it on a problem I have not seen before.

Remember5.1 Small Group · Group 2

Area = base × height for every base of a parallelogram, so you can divide the area by one length to find the other. A = b × h works forward and backward. If you know the area and one length, you can find the other.

Words: Slanted side (Lado inclinado)Parallelogram (Paralelogramo)Parallel (Paralelas)Base (Base)Height (Altura)

  1. 1Complete each step, then write the final answer.

    A parallelogram has an area of 72 square feet. Its height is 6 feet. How long is its base?

    Show your work
    Final answer:
  2. 2Complete each step, then write the final answer.

    A parallelogram has an area of 84 square meters and a base of 12 meters. What is its height?

    Show your work
    Final answer:
  3. 3Complete each step, then write the final answer.

    A window is shaped like a rhombus. Each side is 20 inches. Its area is 360 square inches. What is the height between two of its sides?

    Show your work
    Final answer:
  4. 4Complete each step, then write the final answer.

    A parallelogram has sides of 16 cm and 12 cm. The height to the 16 cm side is 9 cm. What is the height to the 12 cm side?

    Show your work
    Final answer:

Explain your thinkingOne parallelogram has base 15 and height 8. Using a side of 10 as the base, the height is 12. How can both be right?

How did it go? ☐ 4 · I can teach it☐ 3 · I've got it☐ 2 · I need a hint☐ 1 · I need help