Chapter 1.2, Problem 5PP

To determine

The length of an 11cm pencil in millimeter.

Answer to Problem 5PP

The length of the pencil in mm is $\boxed{l=110\text{ mm}}$ .

Explanation of Solution

Given:

Length of the pencil is $l=11\text{ cm}$ .

Formula used:

The expression for conversion of cm to millimeter is

  $1\text{ cm =10 mm}$....................(1)

Here, cm is centimeter and mm is millimeter.

Calculation:

Substitute 11cm for 1cm in equation (1)

  $\begin{array}{l}l=11\text{ cm}=10\times 11\text{ mm}\\ \boxed{l=110\text{ mm}}\end{array}$

Conclusion:

Hence, the length of the pencil in mm is $\boxed{l=110\text{ mm}}$ .