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ohaa [14]
3 years ago
13

A sphere has a radius of 9 in, which means its volume is 972π in3. The sphere is dilated by 2⁄3. What is the volume of the new s

phere?
Mathematics
2 answers:
Minchanka [31]3 years ago
8 0

Answer:

I have this same question on my math test.

Since the <em>radius is 9</em>, the diameter is 18.

The shape is being <em>dilated by 2/3, so the new radius is 6</em>.

Volume formula: V = 4/3πr^3

So now we plug in the values.

V = 4/3 x π x (6)^3

V = 4/3 x π x 216

V = 288π

If the answers <em>do not</em> have the pi symbol present, then it <em>has been multiplied into the answer.</em>

288 x 3.14 = 904.32

The new volume of the sphere is 904.32 in^3

swat323 years ago
3 0

Answer:

08-Oct-2009 — If a spherical balloon has a volume of 972 pi cubic centimeters, what is ... is 4.pi.r^2 (its area remember not volume) as 4/3.pi.r^3=972pi r=9 ... and it is good to know the squares of the next 10 numbers.

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