Answer: Choice A
The volume expression is 4/3 times pi times (3x)^3
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The volume of a sphere is found through the formula
V = (4/3)*pi*r^3
so we start with the fraction 4/3, multiply it with pi, and then multiply it with r^3
In this case, the radius is r = 3x because this is half of the diameter d = 6x
We simply replace the r with 3x in that formula above
V = (4/3)*pi*r^3
V = (4/3)*pi*( r )^3
V = (4/3)*pi*(3x)^3 ... replace r with 3x
.4 because it is .04 multiply by 10^
since 92 is not divisible into 93 by a whole number ratio, 92/93 is already in lowest terms
Answer:
21.21
Step-by-step explanation:
length of arc= 135°÷360×2×π×r
take π=22/7
radius=18/2=9
135°÷360×2×22/7×9
using calculator= 21.21
