Calculating the Surface Area of Pyramids Using Nets

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ExplorationGRADES 6-8

Skill:

Use nets or formulas to find the surface area of prisms, pyramids, and cylinders in number and word problems.

Calculating the Surface Area of Pyramids Using Nets

Unfold nets and calculate the surface area of triangular and rectangular pyramids in this step-by-step exploration activity.

Putting It All Together

Answer these open ended questions on your own or with others to form deeper math connections.

Open-ended question 1

What steps are used to find the surface area of a pyramid?

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Open-ended question 2

Consider the calculations for finding the surface area of a pyramid with a rectangular base and a pyramid with a triangular base. Are any of the calculations different? Explain your answer.

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Open-ended question 3

Consider the calculations for finding the surface area of a pyramid with an equilateral base and a pyramid with a right triangular base. Are any of the calculations different? Explain your answer.

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Open-ended question 4

Which measurements do you need to find the surface area of a pyramid?

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Open-ended question 5

Do you ever need to know the height of the pyramid to find the surface area of a pyramid? If so, when do you need to know the height? Explain your answer.

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