Question

A hall is 150m long 25m wide if it's height is 6m find the area of the four walls of the hall

Answer 1

HERE'S YOUR ANSWER
SINCE A WALL WILL BE RECTANGLE
SO AREA OF RECTANGLE = (L)(B)
$= (25)(6) \\ = 150 \\ for \: four \: walls = 4 \times 150 = 600$
$hope \: help \: full$