Question

For what value of $x$, the perimeter of shape is $77cm$?

Answer 1

R.E.F. Image.

A] perimeter=77

$\Rightarrow (x+1)+(x+1)+(2x+1)+(2x+2)+(x+2)=77$

$\Rightarrow 7x+7=77$

$\Rightarrow x+1=11$

$\therefore x=10$