10.2 Review Worksheet (continued)
Find the surface area of each composite figure. Round to the nearest tenth. 7. 8.
2 ft
8 cm
2 ft
2 cm
0.5 ft
6 cm
9 cm
10 cm
2 ft
1 ft
Describe the effect of each change on the surface area of the given figure. 9. The dimensions are tripled. 10. The dimensions are doubled.
9 ft
3 ft
9 ft
11 ft
12 ft
11. Plant cells are shaped approximately like a right rectangular prism. Each cell absorbs oxygen and nutrients through its surface. Which cell can be expected to absorb at a greater rate? ( Hint : 1 μ m = 1 micrometer = 0.000001 meter)
15 μ m
7 μ m
10 μ m
35 μ m
11 μ m
15 μ m
219
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