Two dimensions
In order that we learn about 3 dimensional volumes as a subheading we must point out an important fact about 2 dimensional surfaces.
Area of a triangle = `1/2` square area
Area of a triangle = `1/2\times\ base\ timesheight`
![](/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)
In order that we learn about 3 dimensional volumes as a subheading we must point out an important fact about 2 dimensional surfaces.
Area of a triangle = `1/2` square area
Area of a triangle = `1/2\times\ base\ timesheight`