These six essential Excel formulas are the shortcuts you ... You can use the SUM function to quickly calculate totals for ...
Excel can also calculate numerical values that are ... However, instead of typing a new formula into B9 using the SUM function, we can either Select cell A9, press Ctrl+C, and then press Ctrl ...
The second method is to use the formula: sum of interior angles = (𝒏 – 2) × 180. This gives (10 – 2) × 180 = 1440 Image caption, Find the sum of the interior angles of a 26-sided polygon.