The length of a playground can be precisely measured using which of the following methods?

• The total length of a measuring tape can be around 100 meters which makes it easier to measure the length of a playground.
• Using a handspan or foot span may not give accurate readings as the measure of a handspan or foot span is not standardized.
• A 30cm ruler is quite small compared to the length of a typical playground, which may lead to human error while measuring.

Therefore, the length of a playground may be precisely measured using plastic tape.