Question

Without looking at the relevant text, convert$30cm$ to feet, expressed as the nearest whole number. (Look at a long ruler to find out!) Based on this, say roughly how many feet make up a meter.

Answer 1

Step 1, Given

1. The given length = $30cm$

Step 2 Unit conversion,

1. As we look at the long ruler, we find that $30cm=12inch=1foot$
2. $1m=100cm$

Step 3 Solution,

1. $1m=3.5\times 30\left(roughly\right)cm$
2. $1m=3.5ft\left(roughly\right)$

Looking at the ruler roughly $3.5ft$makes a meter.