Area of a parallelogram
Again think in terms of a rectangle (see area of a triangle).
Redraw
The left-hand triangle will fit exactly in the right-hand triangle.
Redraw again.
So the area of a parallelogram is…
Base x Height (like a normal rectangle).
Alternatively
It could also be redrawn as
Then the area could be worked out as:
Triangle A + Rectangle B + Triangle C
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-log-table-1.4df6ee6.jpg)
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-log-table-2.d516bb3.jpg)
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-anti-log-table-1.b0b0513.jpg)
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-anti-log-table-2.f89189d.jpg)