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Thepotemich [5.8K]
3 years ago
11

A solid cone of height 12cm and radius 9cm is recast into a solid sphere. Calculate the surface area of the sphere​

Mathematics
2 answers:
Nana76 [90]3 years ago
7 0

Answer:

1017.8

Step-by-step explanation:

this is the formula 4πr2

hope this helps: )

Fofino [41]3 years ago
3 0

Answer:

Step-by-step explanation:

Volume of cone = π9²⋅12/3 = 324π cm³

volume of sphere = 4πr³/3 = 324π

r = ∛243

surface area of sphere = 4πr² ≈ 155.8π

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oksian1 [2.3K]

Answer:

104.73cm²

Step-by-step explanation:

AREA OF SEMI CIRCLE

9cm-4cm = 5cm

5cm is the radius of the semi-circle

(πr²)/2 =

25π/2 = 12.5π

AREA OF SQUARE

16cm*9cm = 144cm²

AREA OF THE FIGURE SHOWN

144cm² - 12.5cmπ²

144cm² - 39.27cm² = 104.73cm²

4 0
3 years ago
Please answer this without making mistakes
Fed [463]

Answer:

14.16 miles further.

Step-by-step explanation:

Campbell to Summerfield

9.52mi + 4.62 mi + 10.08 mi = 24.24 mi

Princeton to summerfield

is 10.08 mi

Therefore difference is 24.24mi - 10.08mi = 14.16 mi

Hope this helps.

8 0
3 years ago
Please help, due tomorrow. will give brainlist if correct.
balu736 [363]

Answer:

k= -1

Step-by-step explanation:

the remainder is 32, f(3)=3(3)*2 + 2(3) + k = 32

f(3)=27 + 6 + k = 32

k=32-33

k= -1

8 0
3 years ago
Which of the following is the line of symmetry for the figure shown below?
12345 [234]
Line C is the correct line of symmetry
6 0
2 years ago
The Choco soda company offers canned drinks that hold
mote1985 [20]

Answer:

1.5 inches

Step-by-step explanation:

56.52/ 8 = 7.065

7.065 / pi =2.248859346

square root of 2.248859346 = 1.5

r = 1.5

8 0
3 years ago
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