What is the easiest amplitude dimension to measure by viewing a pure sine wave on an oscilloscope?

An oscilloscope provides a visual representation of a waveform on a graticule (grid), showing voltage on the vertical axis and time on the horizontal axis. When viewing a continuous waveform like a pure sine wave, both the extreme top (positive peak) and bottom (negative peak) of the wave are clearly visible against this grid. Therefore, the easiest and most direct measurement to make is the total distance from the very bottom to the very top, which is the peak-to-peak voltage. You simply count the number of vertical divisions between these two extremes and multiply by the volts-per-division setting. Other values like RMS or average voltage cannot be read directly from the screen's grid; they require mathematical calculations based on the peak or peak-to-peak readings.