Question

formula of finding the area of 5 walls of cuboid
plz fast very urgent

Answer 1

the fornmula is

lb+2bh+2hl

or

2(lb+bh+hl)-lb

Answer 2

The area of five walls of cuboid is the total surface place of six faces = (l × b) + (l × b) + (l × h) + (l × h) + (b × h) .

Explanation:

• The total surface area of the five faces is calculated  by including all of the areas of each face i.e adding them. Assuming the total surface area of the cuboid be "S".
• As every face of a cuboid is a rectangle, for this reason the area of the rectangle is observed for every face and added ultimately to calculate the total surface area of the cuboid.
• The surface area of the cuboid is the area of every surface of a cuboid.
• The surface of a cuboid may be calculated via way of means of understanding the need for the form of area in a specific situation.