Question

Question 111

Solve the following

For what value of x is the perimeter of shape 186 cm?

Answer 1

Given, length of the given figure=(5x+6)
and breadth of the given figure =(2x+66)
$because$ perimeter of shape =186cm
$\therefore$ $2\times (Length\times Breadth)$=186
$\Rightarrow 2\times \left[\right(5x+6)+(2x+66)=186]\Rightarrow 2\times [7x+72]=186\Rightarrow 14x+144=186\Rightarrow 14x=186-144\Rightarrow 14x=42\Rightarrow x=\frac{42}{14}\therefore x=3$
Hence, the value of x is 3cm.