import math
# This is your exercise file.
# Here you'll find tips and you'll edit code.
# To run the tests run: pytest specs_101.py

# Finish the  hello_human function
def hello_human(name):
    return f"Hello {name}, you are a human"


# Finish the area of square function
def area_square(length):
    length=float(length)
    area=length*length
    return area

# Define a function that take in 2 arguments to calculate the area of a triangle
def area_triangle(base, height):
    base=float(base)
    height=float(height)
    area=0.5*base*height
    return area

def area_circle(radius):
    radius = float(radius)
    pi = math.pi
    area = pi * radius**2
    return area

def volume_sphere(radius):
    radius = float(radius)
    pi = math.pi
    volume = (4/3)*pi*radius**3
    return volume





