Answer:
180 mm
Explanation:
We are given that a pencil whose measure 18 cm long .
We have to find that length of pencil in millimeter
In order to find the value of length of pencil in millimeter we are using conversion of centimeter into millimeter by the unitary method
We know that
1 cm =10 mm
Multiply 10 by 18
18 cm =[tex]18\times 10[/tex]
After multiplying we get
18 cm =180 mm
Length of pencil in millimeter is 180 mm.
Hence, the pencil is 180 mm long.
