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3 years ago

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One of the most serious oversights that someone could commit is. A) Driving under the influence of alcohol or other drugs OB) dr

ive while chewing gum. OC) activate the turn signal. OD) driving down a one-way street.

1 answer:

garik1379 [7]3 years ago

8 0

D. Driving down a one way street

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JulijaS [17]

Question:

Use the formulas below to find the surface area and volume of the cube, sphere, and cylinder “ice cubes”.

“Ice cube” measurements:

• Cube: s = 3 cm

• Sphere: r = 1 cm

• Cylinder: r = 2 cm and h= 3 cm

Note: After you find the surface area and volume of each shape, divide the surface area by the volume to find the surface area to volume ratio expressed as a single number. This should go in the last column.

Answer:

<em><u>Cube: </u></em>

Surface area = $6s^2$

Surface area = 6 (3)(3)

Surface area = $54 cm^2$

Volume = $s^3$

Volume = $(3)^3$

Volume = $27 cm^3$

Surface Area to Volume Ratio = $\frac{54}{27}$ = $\frac{2}{1}$ = 2:1

<u><em>Sphere:</em></u>

Surface area = $4\pi r^2$

Surface area = $4 \pi (1)(1)$

Surface area = $12.566cm^2$

Surface area = $13 cm^2$ (rounding off )

Volume = $\frac{4}{3} \pi r^3$

Volume = $\frac{4}{3} \pi (1)^3$

Volume = $4.188 cm^3$

Volume = $4 cm^3$ (rounding off )

Surface Area to Volume Ratio = $\frac{13}{4}$ = 13 : 1

<em><u>Cylinder:</u></em>

Surface Area $= 2\pi r^2 + 2 \pi rh$

Surface Area = $2\pi (2)^2 + 2 \pi (2)(3)$

Surface Area = $2\pi (4) + 2 \pi (6)$

Surface Area = $8 \pi + 12 \pi$

Surface Area = $20 \pi$

Surface Area = $62.83 cm^2$

Surface area = 63 $cm^2$ (rounding off )

Volume = $\pi r^2 h$

Volume = $\pi (2)^2 (3)$

Volume = $\pi (4) (3)$

Volume = $12 \pi$

Volume = 37 .699

Volume = 38 $cm^3$

Surface Area to Volume Ratio = $\frac{63}{38}$ = 68 : 38

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