twice the height or
the distance round the circumference?
paper rulers work quite well for practical measuring
this version may need scaling
or use graph paper...
a geogebra applet that links diameter with circumference:
several of these questions are adapted from KS3 SATs questions (England)
'satellite' is from a KS3 SAT paper
a similar question to 'rope around the Earth' appeared in William Whiston's book on the Elements of Euclid, dated 1702
he was an English theologian, historian and mathematician