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Hunter-Best [27]
1 year ago
13

Surface area of hemisphere with diameter of 18

Mathematics
1 answer:
saul85 [17]1 year ago
6 0

Answer:

In terms of pi: 243\pi

in decimal form: 763.407

Step-by-step explanation:

to find surface area of a hemisphere the formula is,

3\pi r^{2}

diameter (d) = 18

radius = d / 2 = 18 / 2

radius = 9

3\pi (9)^{2} \\3\pi (81)\\243\pi \\OR\\763.407

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