physics
posted by Yulia .
How do i put them all in sig fig form???
What is the volume in cubic cm of a sphere with radius 2 cm?
is it =
33.51032163829112
What is the area in m2 of a triangle with base 2.8 m and height of 10.4 m?
is it =
14.56
A sphere has a volume of 106 cm3. What is its radius (in cm)?
is it =
is it 6.297560287884612?
that doesnt look right :/

physics 
DrBob222
You have far too many numbers after the decimal point but the first one is right. The second one is right. And you are correct about the fourth one; i.e., it doesn't look right and isn't.
V = 4/3(pi)r^3 = 106
I get something like 3 but that isn't exact. 
physics 
DrBob222
I reread the problem and you are asking about sig fig.
For the first one, if 2 cm is the correct number (not 2.0 or 2.00), then you have only one sig fig so 33.51 would be rounded to 30.
For the second one, you are allowed 2; therefore, round to 15
For the third one, you are allowed 3 figures.
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