Heron's Formula (8.2.4)

Question 1

• To find the area of any triangle given its three sides, use Heron’s formula.

Answer 1

• To find the area of any triangle given its three sides, use Heron’s formula.

Question 2

• Heron’s formula has two parts. For a triangle with sides a, b, and c:
• Calculate s, 1/2 of the perimeter of the triangle, called the semi-perimeter: s=(a+b+c)/2.
• Calculate the area of the triangle using s and the three sides: A=sqrt[s(s-a)(s-b)(s-c)].

Answer 2

• Heron’s formula has two parts. For a triangle with sides a, b, and c:
• Calculate s, 1/2 of the perimeter of the triangle, called the semi-perimeter: s=(a+b+c)/2.
• Calculate the area of the triangle using s and the three sides: A=sqrt[s(s-a)(s-b)(s-c)].