How to find the area of a triangle using heron's formula

The video tutorial explains how to find the area of a triangle using Heron's formula, especially when the height is not given. It starts with a recap of the basic area formula (1/2 base times height) and introduces Heron's formula for cases where only side lengths are known. The tutorial walks through the steps of calculating the semi-perimeter and using it in Heron's formula, providing a detailed example calculation. The importance of showing work to identify mistakes is emphasized, and the session concludes with a brief Q&A.

What is the traditional formula for finding the area of a triangle when the height is known?

• base minus height

• 1/2 base times height

• base times height

• base plus height

What is Heron's formula used for?

• Calculating the area of a triangle with known side lengths

• Finding the perimeter of a triangle

• Determining the height of a triangle

• Calculating the volume of a triangle

In Heron's formula, what does the variable 's' represent?

• The base of the triangle

• The height of the triangle

• The semi-perimeter of the triangle

• The sum of the side lengths

Why is it important to show your work when using Heron's formula?

• To use less paper

• To make the calculation faster

• To avoid mistakes and identify errors

• To ensure the teacher can see your handwriting

What is the final step in calculating the area using Heron's formula?

• Dividing by the number of sides

• Taking the square root of the product

• Multiplying the side lengths

• Adding the side lengths