Page 285 - NUMINO_WB_3A

056_G3U12_WB_CA_˙—» ¿º 2011.4.5 5:54 PM ˘ ` 15 PDF_In 2540DPI 150LPI T

056-P1-1

The Tape with Overlapping Parts

Nine tapes that have a length of 42 cm each are connected as shown
below. What is the length of the connected tape?

42 cm 42 cm

3 cm 3 cm

Step 1. What is the length of the connected tape if there is no overlapping
part?

Step 2. How many overlapping parts are made when nine tapes are
connected?

Step 1. The length of the connected tape above is (the length of the

connected tape with no overlapping part) (the length of the
connected tape with overlapping parts). What is the length of the
connected tape?