Question

Please help me with this!

Answer 1

The line must be 5000 meters long, to have an area of one square meter

The question is an illustration of area

What is area?

The area of a shape is the amount of space occupied by the shape.

From the question, we have the following parameters

$Area =1m^2$

$Width = 0.2mm$

Convert the unit from mm to m

$Width = 0.2 \times 0.001 m$

$Width = 0.0002 m$

The area is then calculated as:

$Area =Length \times width$

This gives

$1=Length \times 0.0002$

Divide both sides by 0.0002

$Length = 5000$

Hence, the line must be 5000 meters long

Read more about areas at:

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