Surface Area of Composite Figures

Question 1

The base of the pyramid sits atop the rectangular prism. How many faces make up the composite figure?

Revolt · Accepted Answer

9

Question 2

Check all that you included in your response.

Revolt · Accepted Answer

Separate the shape into components.; Find each surface area and add them.; Exclude any sections that the figures share.

Question 3

If the exterior of the composite figure is being painted, the area to be painted is approximately 2,820✔ 3,5404,2604,980 ft

Revolt · Accepted Answer

3,540

Question 4

Explain how to calculate the surface area of a composite figure in your own words.

Revolt · Accepted Answer

To find the surface area of a composite figure, first identify the individual three-dimensional shapes that make up the figure. Calculate the surface area of each individual shape separately (using a net or formulas). Add these surface areas together. Finally, subtract the area of any faces where the shapes meet or overlap, because those surfaces are no longer on the outside of the composite figure.

Question 5

Which composite figure has the greatest surface area?

Revolt · Accepted Answer

Answer image: https://r15.core.learn.edgenuity.com//media.edgenuity.com/EVresources/3107-12-05-20-03-task/mc001-4.jpg

Question 6

Total surface area:

Revolt · Accepted Answer

240 square units

Question 7

The surface area of the triangular prism without the shared base is ft2. The surface area of the rectangular prism without the shared base is ft2. If the exterior of the composite figure is being painted, the area to be painted is approximately ft2.

Revolt · Accepted Answer

1,092; Selection 1: 1,092; Selection 2: 2,448; Selection 3: 3,540

Question 8

120 m2160 m2760 m21,152 m2

Revolt · Accepted Answer

1,152 m2

Question 9

The surface area of the rectangular prism without the shared base is 720✔ 2,4483,1688,640 ft

Revolt · Accepted Answer

2,448

Surface Area of Composite Figures Answers

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