Question

which letter points to 10.7 cm? image of a ruler with arrows labeled a, b, c, d and numerical markings 0 to 14 cm
options:
○ a
○ b
○ c
○ d

Explanation:

Step1: Analyze the ruler scale

The ruler has major marks at each centimeter (1, 2, 3, ..., 13, 14) and minor marks (each representing 0.1 cm, since there are 10 minor marks between each centimeter). So each small division is 0.1 cm.

Step2: Locate 10.7 cm

10.7 cm means 10 cm plus 0.7 cm. The 10 cm mark is a major mark, and then we need to move 7 minor marks (since each minor mark is 0.1 cm) past the 10 cm mark. Looking at the arrows:

• Arrow A is around 1 - 2 cm range.
• Arrow B is around 4 cm range.
• Arrow C is between 10 cm and 11 cm. Specifically, 7 minor marks past 10 cm (since 10 + 0.7 = 10.7) would be where arrow C is.
• Arrow D is around 13 cm range.

Answer:

C