Basic Example: A-Series Area Calculate the area of an A4 sheet, given A0 is $1.0\text{ m}^2$.

Intermediate Example: ANSI Halving Find the size half the area of ANSI E ($34 \times 44$ inches).

Advanced Example: ISO to ANSI Conversion An A1 drawing ($594 \times 841\text{ mm}$) must be printed on ANSI paper. Which size fits best?

Basic Example: Calculating Real Length A line measures $5.4\text{ cm}$ on a 1:100 scale drawing. Find real length.

Intermediate Example: Determining Fit Fit a $45\text{m} \times 30\text{m}$ building on an A1 sheet ($594 \times 841\text{ mm}$) with $20\text{mm}$ margins.

Advanced Example: Architect's Scale A pathway is $2\text{ inches}$ on a $1/4\text{ inch} = 1\text{ foot}$ scale plan. Find real length.