Question

Area of a wall 8 metre long 6 metre high and 2.25 metre thick

Answer 1

Answer:

let length 'l' = 8m

breath 'b' = 2.25m or 225/100m = 9/5m

height 'h' = 6m

and , we know that area of wall = area of cuboid

area of wall = 2(l×b+b×h+h×l)

= 2 (8×9/5 + 9/5×6 + 6×8)

= 2 (72/5 + 54/5 + 48)

= 2 {(72 + 54 + 240)/5}

= 2 (336/5)

= 672/5

= 134.4m²

therefore,

area of wall = 134meters²

thanks for yours....