The actual length in meters of the playground is 100 meters.
A scale drawing is a smaller diagram of a larger image. For example, a map of the playground is a scale drawing of the playground.
In order to determine the actual length of the playground, the scale of the drawing has to be determined first.
Scale = actual width / width of the scale
60m / 3cm = 1cm : 20m
Length of the playground = scale x length of the scale drawing
20 x 5 = 100m
To learn more about scale drawings, please check: https://brainly.com/question/1953793