9 cm equals how many mm?

Answer 1

Each centimetre equals 10 millimetres. So, 9 cm equals 90 mm.

Answer 2

9 cm equals 90 mm. This is because there are 10 millimeters in one centimeter.

Answer 3

10 mm = 1 cm

→ 1 mm = 1/10 cm

→ 9 mm = 9 x 1 mm

= 9 x 1/10 cm

= 9 ÷ 10 cm

= 0.9 cm

Answer 4

9 centimeters = 90 millimeters