Question

Please help I don’t understand

Answer 1

Add the sides together:

$perimeter = \frac{7}{8} + \frac{7}{8} + \frac{3}{5} + \frac{3}{5}$

simplify:

$= \frac{7}{4} + \frac{6}{5} = \frac{7}{4} \times \frac{5}{5} + \frac{6}{5} \times \frac{4}{4}$

$= \frac{35}{20} + \frac{24}{20} = \frac{59}{20}$

Answer is

$\frac{59}{20} = 2.95cm$