1.

How to measure km by thread​

Answer»

To FIND the remaining portion, Mark a point at 5 on the thread. And then measure the distance between the two marked points, on the small scale before 0 mark. THEREFORE total LENGTH of the metal Road on map is 11 CM. The scale of a topographic map is USUALLY 2cm=1km.mark me and follow me..✌️✌️✌️



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