How to find areas of triangles using Heron's formula.
Consider a triangle with side lengths 'a', 'b' and 'c'.
The area of the triangle is given by:
Maths Helper Plus can create a worked solution including a labelled diagram for finding the area of a triangle using Heron's formula.
Step 2 Display the parameters box
Press the F5 key to display the parameters box:
Click on the 'A' edit box with the mouse, then enter side 'a' your triangle.
Similarly, enter side 'b' into the 'B' edit box, and side 'c' into the 'C' edit box..
Click the 'Update' button to refresh the diagram and calculations.
Step 3 Adjust the scale of the labelled diagram
If the labelled diagram is too large for the screen, then the scale needs to be reduced. Briefly press the F10 key enough times until the entire diagram is visible.
You can make the diagram bigger by holding down 'Ctrl' while you press F10.