Coursework Question One | Python Fiddle

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a = 4 #where a is the last number of my student ID
t = float(input("Enter number: "))

#area of a circle

from math import pi
from math import sqrt

area = pi*t**2 #calculation for the area of a circle
print("The area of a circle with radius {} is {:.2f}m**2".format(t, area))

#height of hypotenuse

hyp_len = sqrt(a**2+t**2) #calculation for the hypontenuse length
print("The length of the hypotenuse of a right angle triangle with lenghts {:.1f} and {} is {:.2f}".format(a, t, hyp_len))

#the solution to x for (1+t**2)x=a

x = a/(1 + t**2)
print("The solution to x for (1+t**2)x=a is {:.2f}".format(x))

#the electrical resistance of a 1+t**2 ohm resistor parallel with an a ohm resistor

R1 = 1/(1+t**2) #where R1 is the resistance dependent on t
R2 = 1/a # where R2 is the resistance dependent on a
Rt = R1 + R2 #where Rt is equal to the sum of the variable resistors

resistance = 1/Rt #where Rt is equal to the sum of the variable resistors
print("The electrical resistance of a 1+t**2 ohm resistor parallel with an a ohm resistor is {:.2f} ohms".format(resistance))

#the area of a regular octogon

oct_area = 2*(1+sqrt(2))*(2*t)**2
print("the area of a plane regular octogon with side {} is {:.2f}".format(2*t, oct_area))

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