Question

Question 110

Solve the following

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

Answer 1

Given, perimeter of shape=77cm
$\therefore$ Sum of all sides of the shape=77
$\Rightarrow (x+1)+(x+1)+(x+2)+(2x+1)+(2x+2)=77\Rightarrow 7x+7=77\Rightarrow 7x=77-7\Rightarrow 7x=70\Rightarrow x=\frac{70}{7}=10$
Hence, the value of x is 10cm.