´äÀº '45cm'ÀÔ´Ï´Ù.
¸·´ëÀÇ ±æÀÌ°¡ 3¹è µÇ¾úÀ¸¹Ç·Î ±×¸²ÀÚÀÇ ±æÀ̵µ 3¹è. (15cm x 3 = 45cm)