Question

a rectangular board is 1.8 meters long and 1.25 meters wide. what is the area of the board in square millimeters? do not round your answer. be sure to include the correct unit in your answer.

Explanation:

Step1: Calculate the area in square meters

The area formula for a rectangle is \(A = length\times width\). Given \(length = 1.8\) meters and \(width=1.25\) meters.
\(A = 1.8\times1.25=2.25\) \(m^{2}\)

Step2: Convert meters to millimeters

Since \(1\) meter \( = 1000\) millimeters, then \(1\) \(m^{2}=(1000\times1000)\) \(mm^{2}=10^{6}\) \(mm^{2}\)
Multiply the area in square - meters by \(10^{6}\) to get the area in square - millimeters.
\(A = 2.25\times10^{6}\) \(mm^{2}=2250000\) \(mm^{2}\)

Answer:

\(2250000\) \(mm^{2}\)