#### Answer

1 inch

#### Work Step by Step

To find the perimeter, sum the lengths of the sides. Since all 3 are like fractions, no conversion is needed.
$\frac{4}{20}+\frac{7}{20}+\frac{9}{20}=\frac{4+7+9}{20}=\frac{20}{20}=1$

Published by
Pearson

ISBN 10:
0321955048

ISBN 13:
978-0-32195-504-3

1 inch

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