Round to 2 decimal places

ssghotra1997 at gmail.com ssghotra1997 at gmail.com
Wed Dec 6 21:03:02 EST 2017


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



More information about the Python-list mailing list