Question

find the area of four walls of a room whose length is equal to 3.5 Breadth is equals to 2.5 metre and height is equal to 3 metre​

Answer 1

lateral surface area of cuboid=2(lb+bh+hl)

• 2(3.5×2.5+2.5×3+3×3.5)
• 2(8.75+7.5+10.5)
• 53.5