Question

the area of four walls of a room is 260 m square the breadth and height of the room are 10 M and 5m respectively find the length of the room

Answer 1

may the answer is 5.2 ....

Answer 2

$<b><font color ="pink" body bgcolor ="violet ">area of four wall (lateral surface area) =260 2 \times (l + b) \times h = area$
$2 \times (l + 10) \times 5 = 260$
$2l + 20 \times 5 = 260$
$2l + 100 = 260$
$2l = 260 - 100$
$l = \frac{160| }{2}$
$l = 80$