Question

3 cm 9 mm convert to millimeters​

Answer 1

Answer:

1cm = 10mm

So,

3cm + 9mm = 3×10 + 9mm = 39mm

Answer 2

Answer:

$\huge\underline{\mathbb\red{☞︎︎︎A}\green{N}\mathbb\blue{S}\purple{W}\mathbb\orange{E}\pink{R}}\:$

39 mm