Mathematics for IGCSE & O level - Number (Section 3 - No. 20)
Find the largest possible side length for the identical squares that will make up a 240 mm by 204 mm rectangle.
2 mm
6 mm
12 mm
10 mm
הֶסבֵּר
The largest possible side length is the HCF of 240 and 204, which is 12.