Python Program to find the area of Triangle

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Program to find the Python area of Triangle
(Last Updated On: September 2, 2018)

In this program, you’ll learn how to find the area of Triangle in Python

To properly understand this example to find the area of triangle in Python, you should have the knowledge of following Python programming topics:

  1. Input, Output, and Import
  2. Variables and Data Type
  3. Operators

Area of a triangle is equal to half of the product of its base and height.

The height of a triangle is the perpendicular distance from a vertex to the base of the triangle.

Area of Triangle Python

(Note: 12 is the height, not the length of the left-hand side)

Height = h = 12

Base = b = 20

Area = ½ bh = ½ × 20 × 12 = 120

here if a, b, and c are three sides of the triangle so this can be solved by the mathematical formula

#for semi perimeter
s = (a+b+c)/2

# for area
area = √(s(s-a)*(s-b)*(s-c))

Program to find the Area of Triangle

a = 5
b = 6
c = 7

# Uncomment below to take inputs from the user
# a = float(input('Enter first side: '))
# b = float(input('Enter second side: '))
# c = float(input('Enter third side: '))

# calculate the semi-perimeter
s = (a + b + c) / 2

# calculate the area
area = (s*(s-a)*(s-b)*(s-c)) ** 0.5
print('The area of the triangle is %0.2f' %area)

Output:

The area of the triangle is 14.70

Python Program to find the area of Triangle

In this program, the area of the triangle is calculated when three sides are given using Heron’s formula.

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If you need to calculate the area of a triangle depending upon the input from the user, input() function can be used. or can refer the previous program Program to find Addition of Two Numbers Given by User in Python.

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