• Create variables to store three sides of a triangle. Check whether it is an equilateral(等边), Isosceles(等腰), scalene (非等边) and right- angled(直角) triangle. Print the results. • Test your code with different inputs.

side1 = 5
side2 = 5
side3 = 5

if side1 == side2 == side3:
print("Equilateral triangle")

elif side1 == side2 or side2 == side3 or side1 == side3:
print("Isosceles triangle")

else:
print("Scalene triangle")

if side1**2 == side2**2 + side3**2 or side2**2 == side1**2 + side3**2 or side3**2 == side1**2 + side2**2:
print("Right-angled triangle")

else:
print("Not a right-angled triangle")

# Testing with different inputs

side1 = 3
side2 = 4
side3 = 5

if side1 == side2 == side3:
print("Equilateral triangle")

elif side1 == side2 or side2 == side3 or side1 == side3:
print("Isosceles triangle")

else:
print("Scalene triangle")

if side1**2 == side2**2 + side3**2 or side2**2 == side1**2 + side3**2 or side3**2 == side1**2 + side2**2:
print("Right-angled triangle")

else:
print("Not a right-angled triangle")

side1 = 4
side2 = 4
side3 = 6

if side1 == side2 == side3:
print("Equilateral triangle")

elif side1 == side2 or side2 == side3 or side1 == side3:
print("Isosceles triangle")

else:
print("Scalene triangle")

if side1**2 == side2**2 + side3**2 or side2**2 == side1**2 + side3**2 or side3**2 == side1**2 + side2**2:
print("Right-angled triangle")

else:
print("Not a right-angled triangle")