Question

How do you convert $3$ kilometres into feet?

Answer 1

Hint: In the question, we have to find what number of feet corresponds to the length $3$ kilometres. We will follow the unitary method to solve the given problem by first searching the equivalent of one unit of kilometre and then multiplying the equation by a number so as to get the required result.

Complete step-by-step solution:
The given question requires us to convert and interchange the units of length. We have to convert $3$ kilometres into feet.
We know that each kilometre of length consists of $3281$ feet approximately. So, $1km = 3281ft$.
Let the number of feet that correspond to three kilometres be x.
Then, to convert $3$ kilometres into yards, we follow a unitary method where we first find how many units of feet correspond to a single unit of kilometre and then multiply both sides of the equation by a suitable number so as to get the desired conversion of $3$ kilometres.
So, $1km = 3281ft$.
Now, multiplying both the sides of the equation by $3$, we get,
$ \Rightarrow 3km = \left( {3281 \times 3} \right)ft$
Carrying out the calculations, we get,
$ \Rightarrow 3km = 9843ft$
Hence, the length $3$ kilometres can be converted in the unit feet as $9843$ feet approximately.

Note: The kilometres and feet are the units to measure the length of physical commodities or items. A kilometre is abbreviated as km and feet is abbreviated as ft. A kilometre is a metric unit of length and it is used for measuring larger distances lengths as compared to feet.