Draw an open polyline with three links. The length of one link is 6 cm. It is 2 times shorter than the

Draw an open polyline with three links. The length of one link is 6 cm. It is 2 times shorter than the other and 3 cm longer than the third. Name the broken line. Find its length.

Let’s denote the first link by AB, and its length will be 6 centimeters. The second link will be BC, its length, according to the condition of the problem, is 2 times shorter than the first, meaning 6 * 2 = 12 centimeters. The third link will be CD and its length is 3 centimeters longer than the first: 6 + 3 = 9 centimeters.
Broken ABCD with links: 6 (cm); 12 (cm); 9 (cm).