Question

what is the measurement for letter a? include the unit.

Explanation:

Step1: Identify ruler scale

Assuming 1 major division = 1 cm, 10 minor ticks/cm.

Step2: Locate point A

A is at 4th minor tick after 0.

Step3: Calculate measurement

4 ticks × 0.1 cm/tick = 0.4 cm.

Answer:

0.4 cm