Lesson 5.15.1 Small Group · Group 1
Group 1 · Set BSecond form · new problems, same idea
Learning target With my small group, I can find the area of a parallelogram using base × height — one step at a time, with support.
Remember5.1 Small Group · Group 1
To find the area of a parallelogram, multiply the base by the height that meets it at a square corner, not the slanted side. The area of a parallelogram is the base times the height. The height goes straight up from the base.
Words: Slanted side (Lado inclinado)Parallelogram (Paralelogramo)Parallel (Paralelas)Base (Base)Height (Altura)
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1Complete each step, then write the final answer.
A parallelogram has a base of 8 meters and a height of 6 meters. Its slanted side is 7 meters. Find its area.
Show your workHint Use the height, not the slanted side. Multiply 8 × 6.
Final answer: -
2Complete each step, then write the final answer.
A parallelogram has a base of 13 m and a height of 4 m. Find its area.
Show your workHint Multiply the base by the height.
Final answer: -
3Complete each step, then write the final answer.
A kite is shaped like a rhombus. Each side is 15 inches. The height between two sides is 12 inches. What is the area of the kite?
Show your workHint A rhombus is a parallelogram. Use one side as the base.
Final answer: -
4Complete each step, then write the final answer.
A sign is shaped like a parallelogram. Its base is 6.5 feet. Its height is 4 feet. Find its area.
Show your workHint Multiply 6 × 4 and 0.5 × 4. Then add.
Final answer:
Explain your thinkingWhy do we use the height and not the slanted side? Use Leo’s mistake to explain.
Sentence starter The height is ___ because it meets the base at ___. · Leo got 77 because he ___.