To calculate the area of a triangle in Excel, you need to use this formula =(<cell with length>*<cell with height>)/2. If the length is given in the A1 cell and height in the B1 cell, you need to ...

Revise how to calculate the area of a triangle. Learn how to calculate the triangle's area by first finding the area of a rectangle in this BBC Bitesize maths guide.

A KS3 Bitesize 11-14 Maths guide showing you how to prove the area of a triangle is half base × height.

Straight roads, centuries of accurate maps depend on this shape. Using a shadow to measure the height of a tower? That’s an ...

Specifically, the student inscribed 3.75 on the height line of the triangle and 1.875 for the base. The third set of numbers is in the middle of the tablet, representing the area of the triangle.

Along the top line (height) of the triangle, the student has written 3.75, while the vertical line (base) is indicated as 1.875. These values mean the area of the triangle should be 3.5156.