Answer:
Pink block = 1.4 cm
Green block= 1.5 cm
Blue block= 1.7 cm
Step-by-step explanation:
Hi, the ruler is in centimeters, from left to right each long line ( the ones with the number ) is a centimeter.
Since 10 millimeter equals 1 centimeter each short line is a millimeter (0.1 cm)
Knowing this, the measures of each block are.
Pink block = 1.4 cm
Green block= 1.5 cm
Blue block= 1.7 cm
Feel free to ask for more if needed or if you did not understand something.