Question 1088505

The perimeter of Jonah's square backyard is {{{56}}} meters.

since Jonah's  backyard is square, we have
{{{P=4a}}}
{{{56=4a}}}
{{{56/4=a}}}
{{{a=14}}}meters

and the area of Jonah's backyard will be:
{{{A=a^2}}}
{{{A=14^2}}}
{{{A=196}}} meters squared