Answer:
¼"
Step-by-step explanation:
Given
1/4" -- 3/8" -- 1/2" -- 3/4"
The above measurements are given in inches;
1 inch is equivalent to 2.54cm
Hence, 1 inch = 25.4mm
Converting the given measurements from inches to mm
¼inches = ¼ * 25.4 mm
¼inches = 6.35 mm
⅜ inches = ⅜ * 25.4 mm
⅜ inches = (3 * 25.4)/8
⅜ inches = 9.525 mm
½ inches = ½ * 25.4 mm
½ inches = 25.4/2 mm
½ inches = 12.7 mm
¾ inches = ¾ * 25.4 mm
¾ inches = (3 * 25.4)/4
¾ inches = 19.05 mm
From the above conversion,
¼ inches is closer to 7mm plywood and can be replaced with it.