Find the perimeter of the polygon.
-A rectangle measuring $5 \frac{1}{3} \mathrm{~mm}$ by $1 \frac{1}{2} \mathrm{~mm}$.
A) $13 \frac{2}{3} \mathrm{~mm}$
B) $19 \mathrm{~mm}$
C) $8 \mathrm{~mm}$
D) $6 \frac{5}{6} \mathrm{~mm}$

Question

Quizplus · Accepted Answer

The perimeter of a rectangle is calculated as $2 \times (\text{length} + \text{width})$. Here, the length is $5 \frac{1}{3} \mathrm{~mm}$ and the width is $1 \frac{1}{2} \mathrm{~mm}$. Converting these to improper fractions gives $\frac{16}{3} \mathrm{~mm}$ and $\frac{3}{2} \mathrm{~mm}$, respectively. The sum is $\frac{16}{3} + \frac{3}{2} = \frac{32}{6} + \frac{9}{6} = \frac{41}{6}$. Doubling this gives $\frac{82}{6} = 13 \frac{2}{3} \mathrm{~mm}$.

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Find the Perimeter of the Polygon $5 \frac{1}{3} \mathrm{~mm}$ By $1 \frac{1}{2} \mathrm{~mm}$