Round to 2 decimal places

nick martinez nick.martinez2 at aol.com
Wed Dec 6 21:31:57 EST 2017


On Wednesday, December 6, 2017 at 9:03:27 PM UTC-5, ssghot... at gmail.com wrote:
> On Thursday, December 7, 2017 at 12:39:38 PM UTC+11, nick martinez wrote:
> > On Wednesday, December 6, 2017 at 8:13:36 PM UTC-5, ssghot... at gmail.com wrote:
> > > The following works:
> > > 
> > > import math
> > > 
> > > print("This program will calculate the surface area and volume of a 3-dimensional cone: ")
> > > print()
> > > print()
> > > r = input("What is the radius in feet? (no negatives): ")
> > > h = input("What is the height in feet? (no negatives): ")
> > > r = float(r)
> > > h = float(h)
> > > if r > 0 and h > 0:
> > > 
> > >     surfacearea = math.pi * r ** 2 + r * math.pi * (math.sqrt(r ** 2 + h ** 2))
> > >     volume = (1 / 3) * math.pi * r ** 2 * h
> > > 
> > >     print()
> > >     print("Your Answer is:")
> > >     print()
> > > 
> > >     print("A cone with radius", r, "\nand height of", h, "\nhas a volume of : ", round(volume,2), "\nand surface area of : ",
> > >           round(surfacearea,2), )
> > > else:
> > >     print("No negatives allowed, try again.")
> > 
> > Tried this but it doesn't seem to work. It still prints out all of the decimals
> 
> This is the output from the code above (Working):
> 
> What is the radius in feet? (no negatives): >? 2
> What is the height in feet? (no negatives): >? 4
> Your Answer is:
> A cone with radius 2.0 
> and height of 4.0 
> has a volume of :  16.76 
> and surface area of :  40.67

interesting, what version of python are you using? Tried it multiple times and it still isn't working.



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