Question

A steel pipe measures62.95 feet. How manykilometers is this?[ ? ] kmBe sure to round your answer to thecorrect number of significant figures.Length in kmEnter

Answer 1

Recall that:

$1\operatorname{km}=3280.84\text{ ft.}$

Therefore:

$1ft=\frac{1}{3280.84}km\text{.}$

Multiplying the above by 62.95, we get:

$\frac{62.95}{3280.84}km=0.01918715939\operatorname{km}\text{.}$

Now, since the initial number has 4 significant figures, we get that the conversion is:

$0.01919km.$

Answer:

$0.01919\text{ km.}$